Perceived stress across the midlife: longitudinal changes among a diverse sample of women, the Study of Women’s health Across the Nation (SWAN)
© The Author(s). 2018
Received: 7 September 2017
Accepted: 25 February 2018
Published: 16 March 2018
In women, midlife is a period of social and physiological change. Ostensibly stressful, cross-sectional studies suggest women experience decreasing stress perceptions and increasing positive outlook during this life stage. The aim of this paper was to describe the longitudinal changes in perceived stress as women transitioned through the midlife.
Premenopausal women (n = 3044) ages 42–52 years at baseline, were recruited from seven sites in the Study of Women’s Health Across the Nation, and followed approximately annually over 13 visits with assessment of perceived stress and change in menopausal status. Longitudinal regression models were used to assess the effects of age, menopausal status and baseline sociodemographic variables on the trajectory of perceived stress over time.
At baseline, mean age was 46.4 ± 2.7 years; participants were white (47%), black (29%), Hispanic (7%), Japanese (9%), or Chinese (8%). Hispanic women, women with lesser educational attainment, and women reporting financial hardship were each more likely to report high perceived stress levels at baseline (all p < 0.0001). After adjustment for baseline sociodemographic factors, perceived stress decreased over time for most women (p < 0.0001), but increased for both Hispanic and white participants at the New Jersey site (p < 0.0001). Changing menopausal status was not a significant predictor of perceived stress.
Self-reported stress decreased for most women as they transitioned across the midlife; changing menopausal status did not play a significant role after adjustment for age and sociodemographic factors. Future studies should explore the stress experience for women by racial / ethnic identity and demographics.
The midlife, bounded by young adulthood and old age, has heretofore received only limited scientific attention. Modern social scientists place the beginning of midlife at 35 or 40 years of age, to highlight the period when most adults have finished schooling, entered the workforce, and embarked into marriage with childbearing and rearing  – a period of “life past the initial putting together .” Clinically this life phase coincides with the age at which chronic conditions begin to appear, an age that can vary by cultural and sociodemographic identity . When asked themselves, adults cite midlife as beginning anywhere from 35 to 45 and ending around 55–60 years of age [2, 4, 5].
For modern women 40–65 years of age, these middle years are marked by the potential for profound social and physiological changes . Households are changing, with children leaving and “boomerang” children returning [7, 8]. Aging parents may require more care as their health and functioning decline. Workplace stress may increase with the attainment of seniority, additional job strain, and concomitantly increasing time demands [9, 10]. The menopausal transition – a period beginning in the early forties, marking reproductive senescence, changing estrogen levels, and ultimate cessation of the menstrual cycle – can bring vasomotor and genitourinary symptoms, disrupted sleep cycles and mood changes [2, 11–14]. Though the ‘midlife crisis’ has been largely debunked , the midlife years appear to be a period ripe for stress. Previous work has demonstrated that positive affect – a measure of positive mood and outlook – was significantly lower in midlife women (ages 35–64 years in 1995–1996) as compared to younger and older women, with relationship stress and occupational stress found to be strong drivers of the observed dissatisfaction [16, 17].
And yet, perhaps contrary to expectation, research suggests that perceived stress – a self-reported, subjective measure of individual control and coping – decreases, and quality of life increases, through midlife in some populations. Among nearly 14,000 women ages 40–55 years, contacted in 1994 for the Study of Women’s Health Across the Nation (SWAN) cross-sectional screening study, increased age was positively associated with quality of life for white and black women, though not for Chinese, Hispanic or Japanese women . Similar cross-sectional results from the first wave of the Midlife Development in the United States (MIDUS; 1995–1996) study suggest that overall quality of life reaches a nadir in the late 30s to early 40s, only to increase through the remaining midlife and beyond . Cross-sectional studies from both the United States (1983) and United Kingdom (circa 2006) suggest that levels of perceived stress decrease over the entire lifespan for all race / ethnicities [20, 21]. Corresponding with these cross-sectional findings of lower stress perception with age, the longitudinal Melbourne Women’s Midlife Health Project of Australian-born midlife women (ages 45–55 in 1991) found that negative moods – feelings of tension, confusion, helplessness, loneliness, insignificance – decreased significantly over the 11 years of follow-up . However, missing from this literature is a longitudinal assessment of perceived stress, particularly across the midlife.
The aim of this study was to describe the longitudinal reports of perceived stress as women transitioned through the midlife in the SWAN cohort. Specific hypotheses, based on the findings from prior research, were that perceived stress (i) would decrease over time for some, but not all women, due to differing racial / ethnic experiences of aging, and (ii) would increase as women progressed through perimenopause, but generally decrease with age. Socioeconomic factors were included in models as modifying factors expected to influence perceived stress. Secondary data were obtained from this large, sociodemographically diverse cohort of women, with individual perceived stress assessed at multiple points over 15 years and 13 visits. Potential differences in the experience of perceived stress by race / ethnicity, adjusted for socioeconomic status, and whether stress profiles were influenced by stage of the menopausal transition, considered a key biological hallmark of this lifestage, were assessed for longitudinal differences over time.
A full description of the Study of Women’s Health Across the Nation (SWAN) longitudinal cohort and methodology has been published in detail elsewhere . Briefly, SWAN was instituted in 1996 as an observational cohort study of women, their lifestyles, and their health through the menopausal transition with longitudinal follow-up to determine outcomes over time. Eligibility was based on age (42–52 years), self-reported race / ethnicity, and reproductive status (not pregnant or lactating; at least one menstrual cycle in previous three months; uterus and at least one ovary intact; not taking exogenous hormones affecting ovarian function at time of enrollment). Study sites – located in Boston, Massachusetts (MA); Chicago, Illinois (IL); Southeast Michigan (MI); Los Angeles, California (CA); Newark, New Jersey (NJ); Pittsburgh, Pennsylvania (PA); and Oakland, CA – invited recruitment from white, black, Hispanic, Chinese and Japanese communities. All sites recruited white participants, four sites recruited black participants (MA, MI, IL, PA) and one site each recruited Chinese (Oakland, CA), Japanese (Los Angeles, CA) or Hispanic (NJ) participants. At baseline, the full study included 3302 women. Women were followed approximately annually for 13 visits with study participation at 74.5% by visit 13.
For this analysis, women were excluded if they had fewer than two perceived stress scores (n = 253) or experienced a pregnancy (n = 5) over follow-up. The final analytical sample included 3044 women. Data from the NJ site were truncated at visit five due to an interruption in site operations, affecting 108 white and all 212 Hispanic women.
Age, self-reported race / ethnicity, educational attainment (less than high school, high school degree [or equivalent], college degree, post-college training) and smoking status (current smoker yes or no) were ascertained by questionnaire at baseline for all participants. Baseline financial hardship was estimated by self-report to the question: “How hard is it for you to pay for the very basics like food, housing, medical care, and heating”. Available responses were ‘Very Hard’, ‘Somewhat Hard’ and ‘Not very hard at all’. Baseline physical measures including height (centimeters), weight (kilograms) and lightly-clothed waist circumference (in centimeters) were assessed by trained staff during the clinic visit. Body mass index (BMI) was calculated as weight (kg) divided by height (cm) squared.
In the past two weeks, how often have you felt you were unable to control the important things in your life?
In the past two weeks, how often have you felt confident about your ability to handle your personal problems?
In the past two weeks, how often have you felt that things were going your way?
In the past two weeks, how often have you felt difficulties were piling up so high that you could not overcome them?
Participants indicated the frequency they experienced each of the four stressful situations using a 5-point Likert scale (1 = never, 2 = almost never, 3 = sometimes, 4 = fairly often, 5 = very often). For scoring total perceived stress, responses to negative questions were summed with the reverse of the responses to positive questions, yielding a composite score ranging from 4 to 20. Larger PSS4 scores indicated increased time experiencing stressful situations in the prior two weeks. Perceived stress questions were asked at baseline (year 0) and each follow-up visit, for a total of 13 possible measurements. The mean number of available perceived stress scores per woman was 10.2 (median: 12, range: 2–13); 15.6% had five or fewer perceived stress scores.
Menopausal status was assessed at each visit based on participant’s report of menstrual irregularity  or complete cessation of cycles, plus self-reported information on hysterectomy and / or oophorectomy and current hormone use. Menopausal status was coded as premenopausal (menses has occurred in previous 3 months with no change in predictability over past 12 months), early perimenopausal (menses has occurred in previous 3 months, but with less predictability), late perimenopausal (menses has occurred in previous 12 months, but without menses in previous 3 months) or postmenopausal (no menses in past 12 months and / or both ovaries removed). Unknown menopausal status due to hormone use or hysterectomy was collapsed into a single ‘unknown’ category.
Baseline descriptive information was compared for all participants and by baseline reported perceived stress level (categorized as low [≤ 25th percentile], moderate, high [≥ 75 percentile]). Women without a baseline PSS score (n = 86) were not included in analyses focused on stress at baseline, but were included in the longitudinal models of perceived stress. Logistic regression, adjusting for age, was used to assess the association of sociodemographic variables with high (versus low + moderate) perceived stress at baseline. To assess for potential bias due to selective loss of participants reporting higher baseline perceived stress, linear regression, adjusting for age, was used to test the difference in baseline perceived stress by loss to follow-up status over the 13 visits.
To guide modeling, change in mean perceived stress was first explored graphically by age, stratified by selected sociodemographic variables expected to contribute to perceived stress (race / ethnicity, educational attainment, baseline financial hardship, site of recruitment). For graphing crude means, age was truncated at 65 years (55 years for Hispanic women) to prevent leverage in slope estimation due to cohort attrition and the smaller numbers of women at the upper tail of the age distribution.
A linear mixed model was examined to understand the contribution of sociodemographic variables and menopausal status to change in perceived stress over time. Variables of interest were first reviewed individually for their effects on perceived stress. Model building was performed sequentially, using a forward stepwise approach, with statistical significance of added variables assessed by variable significance and model fit tested by Likelihood Ratio with alpha set to 0.05. Appropriateness of random effects in models were tested using restricted maximum likelihood and mixed effects were tested using maximum likelihood. An unstructured variance-covariate matrix was assumed. All models incorporated race / ethnicity and age, centered at 42 years, as a time-varying variable and included a random slope for age. Potential interactions of longitudinal age with sociodemographic variables were evaluated to assess differences in slope. Additional interactions with race / ethnicity and socio-economic variables were assessed in separate models, but small cell sizes resulted in model instability.
Final models were assessed for appropriate specification by review of the errors from the random effects (age) as well as the conditional errors for the fixed effects. All errors were assessed for normality graphically. All graphing and statistics were performed using SAS version 9.4 (SAS Institute, Cary, NC).
Population characteristics by baseline perceived stress score
Category of Baseline Perceived Stressab
Overall (n = 3044)
Low (n = 844)
Moderate (n = 1352)
High (n = 762)
8.5 ± 2.9
5.1 ± 0.8
8.5 ± 1.1
12.4 ± 1.5
46.4 ± 2.7
46.3 ± 2.7
46.4 ± 2.7
46.2 ± 2.7
Race / Ethnicity (%)
Less than High School
Difficulty paying for Basics (%)
Site of Recruitment (%)
Los Angeles, CA
Smoking Status (%)
28.2 ± 7.2
27.9 ± 6.8
27.9 ± 7.1
29.3 ± 7.8
Waist Circumference (cm)c
86.1 ± 16.1
85.4 ± 15.6
85.6 ± 15.7
88.7 ± 17.2
At baseline, Hispanic women were significantly more likely to report high perceived stress as compared to any other race / ethnicity (all comparisons p < 0.0001), while Chinese women were significantly less likely to report high stress (p < 0.0001 for white, black and Hispanic women, p = 0.0185 for Japanese women) (Table 1). Women reporting higher levels of financial hardship were more likely to report high perceived stress than women reporting some or no financial hardship (p = 0.0003 and < 0.0001, respectively); and women without a high school diploma were significantly more likely to report high perceived stress than women with a high school diploma, college or other advanced degree (all p < 0.0001). Likewise, women who were current smokers were more likely to report high levels of perceived stress as compared to women who were not (p < 0.0001), and women with increased BMI or waist circumference were also more likely to report high perceived stress (p < 0.0001 for each).
Perceived stress and increasing age
Unadjusted and fully adjusted random effects model explaining perceived stress over increasing age
Fully Adjusted Model*
β (95% CI)
P (Type 3)
β (95% CI)
P (Type 3)
7.93 (7.65, 8.20)
−0.06 (− 0.07, − 0.06)
−0.10 (− 0.12, − 0.08)
Race / Ethnicity
0.16 (−0.02, 0.35)
−0.06 (− 0.26, 0.14)
2.06 (1.73, 2.39)
−0.33 (− 0.86, 0.20)
0.71 (0.43, 0.99)
0.84 (0.47, 1.21)
0.31 (0.01, 0.61)
0.28 (−0.11, 0.67)
Difficulty paying for Basics (%)
1.26 (1.09, 1.43)
1.28 (1.06, 1.51)
2.20 (1.92, 2.48)
2.37 (2.00, 2.74)
Less than High School
1.37 (1.03, 1.71)
0.34 (−0.02, 0.69)
−0.23 (− 0.43, − 0.02)
−0.02 (− 0.22, 0.18)
−0.79 (− 0.99, − 0.60)
−0.32 (− 0.52, − 0.12)
Site of Recruitment
0.67 (0.40, 0.95)
−0.20 (−0.54, 0.15)
0.59 (0.3, 0.87)
0.01 (−0.34, 0.37)
0.02 (−0.27, 0.31)
−0.04 (− 0.40, 0.32)
0.44 (0.15, 0.72)
0.03 (−0.39, 0.44)
Los Angeles, CA
0.61 (0.33, 0.89)
−0.59 (− 0.99, − 0.18)
2.21 (1.89, 2.53)
0.11 (−0.47, 0.70)
−0.20 (−0.29, − 0.10)
−0.30 (− 0.42, − 0.17)
− 0.67 (− 0.76, − 0.58)
−0.33 (− 0.47, − 0.20)
Age * Difficulty paying for Basics Interaction
−0.02 (− 0.04, − 0.01)
− 0.05 (− 0.08, − 0.02)
Age * Site Interaction
0.08 (0.05, 0.10)
0.06 (0.03, 0.08)
0.02 (− 0.00, 0.05)
0.04 (0.02, 0.07)
Age*Los Angeles, CA
0.09 (0.06, 0.11)
0.21 (0.16, 0.26)
When menopausal status was added to the final adjusted model with longitudinal age, model fit increased significantly (Likelihood Ratio p < 0.00001). Results suggested that progression through each stage of the menopausal transition (from pre-menopause onward) was associated with a further decrease in perceived stress, however the menopausal status variable did not reach statistical significance (p = 0.5203; data not shown) and thus was omitted from the final model.
This study is one of the first to describe longitudinal change in perceived stress levels in a multi-ethnic sample of midlife women in the United States. Mean levels of self-reported stress, as measured annually by Cohen’s Perceived Stress Scale, decreased for most women as they transitioned across the midlife. Compared to similar black, white and Chinese women within SWAN, mean levels of perceived stress decreased in a more attenuated fashion for Japanese women, but increased over time for white and Hispanic women living in New Jersey. In addition, women with lower educational attainment, and in particular, baseline financial hardship, consistently reported higher levels of perceived stress, though this difference diminished with time. After adjustment for other sociodemographic variables, race / ethnicity was a significant predictor of increased perceived stress for only Japanese women. Changing menopausal status did not play a significant role in change in perceived stress after adjustment for age and sociodemographic factors.
Cross-sectional studies performed both in the United States and the United Kingdom have suggested that perceived stress decreases with age. A 1983 population-based survey of adults in the United States reported a mean PSS4 of 4.9 ± 3.0 for adults ages 18–29 years, 4.4 ± 2.9 for adults ages 45–54 years and 4.0 ± 3.0 for adults ages 65 years and older using a 0–15 scale (corresponding to mean PSS4 scores of 8.9, 8.4 and 8.0, respectively, on the 4–20 scale used here) . Reported perceived stress was higher among women compared to men, Hispanics and blacks as compared to whites, and increased with lower annual income and educational attainment. Similarly, a more recent cross-sectional review of reported perceived stress from individuals ages 16–85 years living in the United Kingdom indicated that younger age, female sex, reduced social support and black, Asian (Indian, Pakistani, Bangladeshi, other) or mixed (as compared to white) race were associated with higher PSS4 scores .
While the unadjusted results indicated that women of non-white ethnicity or with lower socioeconomic means tended to report higher perceived stress, supporting the findings from the above referenced studies, the adjusted analyses presented here indicated that black women and Hispanic women reported lower perceived stress at baseline as compared to similar white, Japanese and Chinese women in SWAN. Although these differences did not reach statistical significance, our findings are in contrast to studies of SWAN participants that indicate that black women (in particular) and Chinese women report higher levels of perceived discrimination and unfair treatment than their peers, and that these reports are tied to increased biological stress reactivity and decreased mental and physical health [26–28]. This paradox – lower perceived stress reports among subgroups showing higher biological response to stressors – may be explained by a tendency for women with lower social standing to internalize and normalize stressors that are experienced frequently [29–31]. For example, Lee and Bierman found that, in older adults experiencing discrimination, decreased social status was associated with fewer outward expressions of anger, but more suppressed or internalized experiences of anger; the authors theorized that anger suppression was a coping mechanism and a method to de-escalate potentially dangerous situations . These finding with the SWAN cohort are intriguing and warrant further investigation.
In further comparison to the cross-sectional studies, the work presented here indicates that there are variations in the rate of change of perceived stress in some subgroups of women and, moreover, that not all individuals experience decreases over time. The faster rate of decrease in perceived stress scores for women initially in the higher categories of baseline financial hardship may be due to alleviation of the stressor as women age into retirement  or may reflect acute baseline financial stressors associated with only temporary increases in perceived stress. Conversely, the results may reflect selective cohort loss over time among women reporting higher financial hardship, although mean baseline perceived stress scores did not vary by attrition status. Curiously, while our results indicate that perceived stress decreased for all women to some varying degree as they aged across the midlife, Hispanic and white women living in or near Newark, NJ reported increasing perceived stress over the course of their five visits from baseline. Due to the interruption of activities at the NJ site, it is impossible to determine whether the observed perceived stress trajectory would have continued to increase or reverse course over the remaining 8 visits. Notably, the fifth follow-up occurred primarily in 2001/2002, and results may have been influenced by the World Trade Center bombing in September 2001 . Moreover, as Hispanic women were recruited only from this site, it is impossible to disentangle the site effect from the experience of being a midlife Hispanic woman in the United States.
Our results found no increase in perceived stress associated with changing menopausal status after adjustment for aging and sociodemographic characteristics. These findings are in contrast to existing cross-sectional work and some longitudinal work suggesting that the menopausal transition is associated with higher stress and depression. Freeman et al. found that higher perceived stress was independently associated with higher menopausal symptom severity including: hot flushes, poor sleep quality, depression and general aches and stiffness . Though these findings are intriguing, they excluded assessment of general socioeconomic status – obscuring the role of general life stressors during the experience of menopause . More recently, when adjusting for study visit, Falconi et al. found that early and late perimenopause were significantly associated with increases in perceived stress , but they did not adjust for age or sociodemographic indicators. Prior publications have indicated that women who proceed through menopause at an earlier age are socioeconomically disadvantaged [37–39] and already prone to increased life stress . Woods et al., in longitudinal analyses from the Seattle Midlife Women’s Study, which included predominately white women but adjusted for age, found that factors such as employment and health status, but also pre-existing mood disturbances, were the only significant predictors of perceived stress over a decade, and not the menopausal transition itself . Our findings are consistent with Woods et al. as we found that the role of socioeconomic factors such as educational attainment, employment and financial hardship were stronger predictors of perceived stress over midlife than the menopausal transition itself in this larger, more diverse sample of midlife women. These findings may suggest that women experience the menopausal transition as a series of acute stressors (e.g., hot flashes, sleep disturbances) that can be attenuated by chronic, socioeconomic-based life stressors, however further work would be necessary to substantiate this theory.
Explanations for the observed decreases in perceived stress with age are suggestive yet incomplete. Research suggests that older adults show more maturity and regulation of emotion [42, 43], leading to increased feelings of optimism and fewer symptoms of psychological distress than younger adults [44, 45], however the cross-sectional nature of most extant studies can not rule out a cohort effect based on era of birth. Beyond changes in the appraisal and regulation of stress, changing life roles with age, such as retirement or the relinquishment of parenting, may lead to the occurrence of fewer stressful events even as individual health may be declining . Focus groups performed with women in the United States suggest that the midlife is a time of reduced child-rearing responsibilities leading to role restructuring, more control over one’s time, and an increased sense of personal power and freedom [47–50] – concepts embedded in Cohen’s Perceived Stress Scale. Finally, recent longitudinal work performed by Lachman et al. for the Midlife in the United States (MIDUS) study shows that life satisfaction significantly increases across the midlife decades (4th to 5th, 5th to 6th decades) , again corresponding with the decreases in perceived stress seen in this work.
Despite the decreasing perception of stress with age, individuals who report relatively greater stress at the start of the midlife continue to report higher stress levels as they age, an important finding given that more highly stressed individuals are at greater health risk than their less-stressed peers. Arnold et al. found that high or moderate baseline perceived stress increased mortality risk for adults hospitalized with acute myocardial infarction (high/moderate vs. low PSS4 score: aHR = 1.42 [95% CI = 1.15–1.76]) . Investigators for the REGARDS study found that, for individuals with household incomes < $35,000/ yr., baseline PSS4 score was associated with all-cause mortality risk (high vs. no stress: aOR = 1.55 [95%CI: 1.31–1.82]), and marginally associated with incident coronary heart disease (high vs. no stress: aOR = 1.29 [95%CI: 0.99–1.69]) . Similarly, Aggarwal et al. identified increased baseline perceived stress, as measured by a modified ‘PSS6’ score, to be predictive of future cerebral infarct in older adults (high vs. low PSS6 score: aOR = 1.94, 95% CI = 1.11–3.40) . As individuals in lower socioeconomic and sociocultural strata are more at risk of adverse health outcomes such as diabetes, stroke and myocardial infarct [54–59], it is plausible that individual perception and internal assimilation of stress is one of many factors directly influencing health . Future work will assess whether the women of SWAN who report higher perceived stress, and lower socioeconomic means, are more at risk of adverse outcomes.
The primary limitation of this study was our limited ability to understand perceived stress among women reporting the highest levels over time. Hispanic women, women reporting extreme financial hardship at baseline, and those with the least education, each comprised less than 10% of the study sample, limiting power and preventing analyses to disentangle potential interactions among these subgroups. Similarly, the disruption of operations at the NJ site, a site situated to recruit Hispanic women and women of lower socioeconomic means, prevented a complete review of change in reported perceived stress over time at that site. Only baseline financial hardship was assessed in these models as it was not measured at every follow-up visit. Fluctuating hardship levels may explain additional variability over time. It is also worth noting that we are ascribing self-reports of perceived stress over a two-week period to women’s perceptions over the course of a year, ruling out a detailed assessment of stress that women may feel on a day-to-day basis. This broader view of stress, in addition to our exploration of menopausal stages versus menopausal symptoms, may have precluded the assessment of the impact of stressors that fluctuate on a daily basis, such as from vasomotor symptoms. Finally, we have chosen to review and model mean change over time, which may obscure subtle differences in trajectories of stress that are non-linear; a subject worth further exploration. Nonetheless, the analyses presented, incorporating the diverse cohort from the SWAN longitudinal study, provide important information about stress over the midlife and menopausal transition.
In conclusion, this study found that the perception of stress decreased over time for the majority of this diverse set of midlife women in the United States. Perceived stress increased for the Hispanic and white women recruited from New Jersey, and was consistently greater among women with lesser education attainment and women experiencing financial difficulty. Concomitant with the increased reporting of stress, those with higher stress were more likely to smoke and have higher BMIs at baseline. While we are limited to observing the change in stress over the thirteen years of study – and solely within women – our results add credence to the original surveys performed by Cohen et al. [20, 24], and provide further evidence that decreases in stress are truly age-related and not related to era of birth. Future work is necessary to further explore the stress experience for women in the United States, especially as it varies by racial / ethnic identity, but also to assess longitudinal trajectories of stress that are non-linear or unchanging over time, change with changing life roles, and to tie the observed perceived stress differences with adverse mental and clinical outcomes.
We thank all the women who participated in SWAN and the study personnel at each site.
Clinical Centers: University of Michigan, Ann Arbor – Siobán Harlow, PI 2011 – present, MaryFran Sowers, PI 1994-2011; Massachusetts General Hospital, Boston, MA – Joel Finkelstein, PI 1999 – present; Robert Neer, PI 1994 – 1999; Rush University, Rush University Medical Center, Chicago, IL – Howard Kravitz, PI 2009 – present; Lynda Powell, PI 1994 – 2009; University of California, Davis/Kaiser – Ellen Gold, PI; University of California, Los Angeles – Gail Greendale, PI; Albert Einstein College of Medicine, Bronx, NY – Carol Derby, PI 2011 – present, Rachel Wildman, PI 2010 – 2011; Nanette Santoro, PI 2004 – 2010; University of Medicine and Dentistry – New Jersey Medical School, Newark – Gerson Weiss, PI 1994 – 2004; and the University of Pittsburgh, Pittsburgh, PA – Karen Matthews, PI.
NIH Program Office: National Institute on Aging, Bethesda, MD – Chhanda Dutta 2016- present; Winifred Rossi 2012–2016; Sherry Sherman 1994 – 2012; Marcia Ory 1994 – 2001; National Institute of Nursing Research, Bethesda, MD – Program Officers.
Central Laboratory: University of Michigan, Ann Arbor – Daniel McConnell (Central Ligand Assay Satellite Services).
SWAN Repository: University of Michigan, Ann Arbor – Siobán Harlow 2013 - Present; Dan McConnell 2011 - 2013; MaryFran Sowers 2000 – 2011.
Coordinating Center: University of Pittsburgh, Pittsburgh, PA – Maria Mori Brooks, PI 2012 - present; Kim Sutton-Tyrrell, PI 2001 – 2012; New England Research Institutes, Watertown, MA - Sonja McKinlay, PI 1995 – 2001.
Steering Committee: Susan Johnson, Current Chair; Chris Gallagher, Former Chair.
The Study of Women’s Health Across the Nation (SWAN) has grant support from the National Institutes of Health (NIH), DHHS, through the National Institute on Aging (NIA), the National Institute of Nursing Research (NINR) and the NIH Office of Research on Women’s Health (ORWH) (Grants U01NR004061; U01AG012505, U01AG012535, U01AG012531, U01AG012539, U01AG012546, U01AG012553, U01AG012554, U01AG012495). The content of this article is solely the responsibility of the authors and does not necessarily represent the official views of the NIA, NINR, ORWH or the NIH. SDH gratefully acknowledge use of the services and facilities of the Population Studies Center at the University of Michigan, funded by NICHD Center Grant R24 HD041028.
The National Institute of Aging and National Institute of Nursing Research program officers participated in the design of the SWAN study. They were not involved in the data analysis, interpretation of data or writing of this manuscript.
Availability of data and materials
Public use data sets are available at https://www.icpsr.umich.edu/icpsrweb/ICPSR/series/253
EH conducted the literature review and data analyses, and had primary responsibility for the drafting the manuscript. SDH and CKG made substantial contributions to the design and oversaw the data analyses. All authors contributed to the critical review and revision of the manuscript for intellectual content. All authors read and approved the final manuscript.
Ethics approval and consent to participate
Informed consent was obtained from study participants annually. This study was approved by the institutional review board at each SWAN study site.
Consent for publication
The authors declare that they have no competing interests.
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- Lachman ME. Development in Midlife. Annu Rev Psychol. 2004;55:305–31.View ArticlePubMedGoogle Scholar
- Woods NF, Mitchell ES. Women’s images of midlife: observations from the Seattle midlife women’s health study. Health Care Women Int. 1997;18:439–53.View ArticlePubMedGoogle Scholar
- Ward BW, Schiller JS, Goodman RA. Multiple chronic conditions among US adults: a 2012 update. Prev Chronic Dis. 2014;11 https://doi.org/10.5888/pcd11.130389.
- Brim OG, Ryff CD, Kessler RC, editors. How healthy are we?: a national study of well-being at midlife. Chicago: University of Chicago Press; 2004.Google Scholar
- Lachman ME, Teshale S, Agrigoroaei S. Midlife as a pivotal period in the life course: balancing growth and decline at the crossroads of youth and old age. Int J Behav Dev. 2015;39:20–31.View ArticlePubMedGoogle Scholar
- Williams K, Kurina LM. The social structure, stress, and women’s health. Clin Obstet Gynecol. 2002;45:1099–118.View ArticlePubMedGoogle Scholar
- Jacobsen L, Mather M, Dupuis G. Household change in the United States. Popul Bull. 2012;67 http://www.prb.org/Publications/Reports/2012/us-household-change.aspx. Accessed 23 Oct 2016
- Fry R. For first time in modern era, living with parents edges out other living arrangements for 18- to 34-year-olds. Washington, D.C: Pew Research Center; 2016. http://www.pewsocialtrends.org/2016/05/24/for-first-time-in-modern-era-living-with-parents-edges-out-other-living-arrangements-for-18-to-34-year-olds/. Accessed 27 Sep 2016Google Scholar
- Amick BC, Kawachi I, Coakley EH, Lerner D, Levine S, Colditz GA. Relationship of job strain and iso-strain to health status in a cohort of women in the United States. Scand J Work Environ Health. 1998;24:54–61.View ArticlePubMedGoogle Scholar
- Lundberg U, Frankenhaeuser M. Stress and workload of men and women in high-ranking positions. J Occup Health Psychol. 1999;4:142–51.View ArticlePubMedGoogle Scholar
- Woods NF, Mitchell ES. Symptoms during the perimenopause: prevalence, severity, trajectory, and significance in women’s lives. Am J Med. 2005;118(Suppl 12B):14–24.View ArticlePubMedGoogle Scholar
- Davis SR, Castelo-Branco C, Chedraui P, Lumsden MA, Nappi RE, Shah D, et al. Understanding weight gain at menopause. Climacteric J Int Menopause Soc. 2012;15:419–29.View ArticleGoogle Scholar
- Hall JE. Endocrinology of the menopause. Endocrinol Metab Clin N Am. 2015;44:485–96.View ArticleGoogle Scholar
- Santoro N, Epperson CN, Mathews SB. Menopausal symptoms and their management. Endocrinol Metab Clin N Am. 2015;44:497–515.View ArticleGoogle Scholar
- Freund AM, Ritter JO. Midlife crisis: a debate. Gerontology. 2009;55:582–91.View ArticlePubMedGoogle Scholar
- Mroczek DK, Kolarz CM. The effect of age on positive and negative affect: a developmental perspective on happiness. J Pers Soc Psychol. 1998;75:1333–49.View ArticlePubMedGoogle Scholar
- Mroczek D. Positive and negative affect at midlife. In: Brim OG, Ryff CD, Kessler RC, editors. How healthy are we?: a national study of well-being at midlife. Chicago, IL: University of Chicago Press; 2004. p. 205–26.Google Scholar
- Avis NE, Assmann SF, Kravitz HM, Ganz PA, Ory M. Quality of life in diverse groups of midlife women: assessing the influence of menopause, health status and psychosocial and demographic factors. Qual Life Res Int J Qual Life Asp Treat Care Rehabil. 2004;13:933–46.View ArticleGoogle Scholar
- Fleeson W. The quality of American life at the end of the century. In: Brim O, Ryff C, Kessler R, editors. How healthy are we?: a National Study of well-being at midlife. Chicago, IL: University of Chicago Press; 2004. p. 252–72.Google Scholar
- Cohen S. Perceived stress in a probability sample of the United States. In: The social psychology of health. Newbury Park, Calif: sage publications; 1988. p. 31–67.Google Scholar
- Warttig SL, Forshaw MJ, South J, White AK. New, normative, English-sample data for the short form perceived stress scale (PSS-4). J Health Psychol. 2013;18:1617–28.View ArticlePubMedGoogle Scholar
- Dennerstein L, Guthrie JR, Clark M, Lehert P, Henderson VW. A population-based study of depressed mood in middle-aged. Australian-born women Menopause N Y N. 2004;11:563–8.View ArticleGoogle Scholar
- Sowers M, Crawford SL, Sternfeld B, Morganstein D, Gold E, Greendale G, et al. SWAN: a multicenter, multiethnic, community-based cohort study of women and the menopausal transition. In: Lobo RA, Kelsey JL, Marcus R, editors. Menopause: biology and pathobiology. San Diego, CA: Academic Press; 2000. p. 175–88.View ArticleGoogle Scholar
- Cohen S, Kamarck T, Mermelstein R. A global measure of perceived stress. J Health Soc Behav. 1983;24:385–96.View ArticlePubMedGoogle Scholar
- Brambilla DJ, McKinlay SM, Johannes CB. Defining the perimenopause for application in epidemiologic investigations. Am J Epidemiol. 1994;140:1091–5.View ArticlePubMedGoogle Scholar
- Guyll M, Matthews KA, Bromberger JT. Discrimination and unfair treatment: relationship to cardiovascular reactivity among African American and European American women. Health Psychol Off J Div Health Psychol Am Psychol Assoc. 2001;20:315–25.Google Scholar
- Brown C, Matthews KA, Bromberger JT, Chang Y. The relation between perceived unfair treatment and blood pressure in a racially/ethnically diverse sample of women. Am J Epidemiol. 2006;164:257–62.View ArticlePubMedGoogle Scholar
- Pascoe EA, Smart Richman L. Perceived discrimination and health: a meta-analytic review. Psychol Bull. 2009;135:531–54.View ArticlePubMedPubMed CentralGoogle Scholar
- Thomas SA, González-Prendes AA. Powerlessness, anger, and stress in African American women: implications for physical and emotional health. Health Care Women Int. 2009;30:93–113.View ArticlePubMedGoogle Scholar
- Lee Y, Bierman A. A longitudinal assessment of perceived discrimination and maladaptive expressions of anger among older adults: does subjective social power buffer the association? J Gerontol. Series B, Psychol Sci Soc Sci. 2016.Google Scholar
- Krieger N. Discrimination and health inequities. Int J Health Serv Plan Adm Eval. 2014;44:643–710.View ArticleGoogle Scholar
- van der Heide I, van Rijn RM, Robroek SJ, Burdorf A, Proper KI. Is retirement good for your health? A systematic review of longitudinal studies. BMC Public Health. 2013;13 https://doi.org/10.1186/1471-2458-13-1180.
- Silver RC, Holman EA, McIntosh DN, Poulin M, Gil-Rivas V. Nationwide longitudinal study of psychological responses to September 11. JAMA. 2002;288:1235–44.View ArticlePubMedGoogle Scholar
- Freeman EW, Sammel MD, Lin H, Gracia CR, Pien GW, Nelson DB, et al. Symptoms associated with menopausal transition and reproductive hormones in midlife women. Obstet Gynecol. 2007;110(2 Pt 1):230–40.View ArticlePubMedGoogle Scholar
- Nosek M, Kennedy HP, Beyene Y, Taylor D, Gilliss C, Lee K. The effects of perceived stress and attitudes toward menopause and aging on symptoms of menopause. J Midwifery Womens Health. 2010;55:328–34.View ArticlePubMedPubMed CentralGoogle Scholar
- Falconi AM, Gold EB, Janssen I. The longitudinal relation of stress during the menopausal transition to fibrinogen concentrations: results from the study of Women’s health across the nation. Menopause N Y N. 2016;23:518–27.View ArticleGoogle Scholar
- Stanford JL, Hartge P, Brinton LA, Hoover RN, Brookmeyer R. Factors influencing the age at natural menopause. J Chronic Dis. 1987;40:995–1002.View ArticlePubMedGoogle Scholar
- Gold EB. Factors associated with age at natural menopause in a multiethnic sample of midlife women. Am J Epidemiol. 2001;153:865–74.View ArticlePubMedGoogle Scholar
- Gold EB, Crawford SL, Avis NE, Crandall CJ, Matthews KA, Waetjen LE, et al. Factors related to age at natural menopause: longitudinal analyses from SWAN. Am J Epidemiol. 2013;178:70–83.View ArticlePubMedPubMed CentralGoogle Scholar
- Bromberger JT, Matthews KA, Kuller LH, Wing RR, Meilahn EN, Plantinga P. Prospective study of the determinants of age at menopause. Am J Epidemiol. 1997;145:124–33.View ArticlePubMedGoogle Scholar
- Woods NF, Mitchell ES, Percival DB, Smith-DiJulio K. Is the menopausal transition stressful? Observations of perceived stress from the Seattle midlife Women’s health study. Menopause N Y N. 2009;16:90–7.View ArticleGoogle Scholar
- Boeninger DK, Shiraishi RW, Aldwin CM, Spiro A. Why do older men report low stress ratings? Findings from the veterans affairs normative aging study. Int J Aging Hum Dev. 2009;68:149–70.View ArticlePubMedGoogle Scholar
- Brummer L, Stopa L, Bucks R. The influence of age on emotion regulation strategies and psychological distress. Behav Cogn Psychother. 2014;42:668–81.View ArticlePubMedGoogle Scholar
- Lawton MP, Kleban MH, Rajagopal D, Dean J. Dimensions of affective experience in three age groups. Psychol Aging. 1992;7:171–84.View ArticlePubMedGoogle Scholar
- Chang E. Optimism–pessimism and stress appraisal: testing a cognitive interactive model of psychological adjustment in adults. Cogn Ther Res. 2002;26:675–90.View ArticleGoogle Scholar
- Aldwin CM, Sutton KJ, Chiara G, Spiro A. Age differences in stress, coping, and appraisal: findings from the normative aging study. J Gerontol B Psychol Sci Soc Sci. 1996;51:P179–88.View ArticlePubMedGoogle Scholar
- Berg JA, Taylor DL. Symptom responses of midlife Filipina Americans. Menopause N Y N. 1999;6:115–21.Google Scholar
- Sampselle CM, Harris V, Harlow SD, Sowers M. Midlife development and menopause in African American and Caucasian women. Health Care Women Int. 2002;23:351–63.View ArticlePubMedGoogle Scholar
- Kagawa-Singer M, Wu K, Kawanishi Y, Greendale GA, Kim S, Adler SR, et al. Comparison of the menopause and midlife transition between Japanese American and European American women. Med Anthropol Q. 2002;16:64–91.View ArticleGoogle Scholar
- Villarruel AM, Harlow SD, Lopez M, Sowers M. El cambio de Vida: conceptualizations of menopause and midlife among urban Latina women. Res Theory Nurs Pract. 2002;16:91–102.View ArticlePubMedGoogle Scholar
- Arnold SV, Smolderen KG, Buchanan DM, Li Y, Spertus JA. Perceived stress in myocardial infarction: long-term mortality and health status outcomes. J Am Coll Cardiol. 2012;60:1756–63.View ArticlePubMedPubMed CentralGoogle Scholar
- Redmond N, Richman J, Gamboa CM, Albert MA, Sims M, Durant RW, et al. Perceived stress is associated with incident coronary heart disease and all-cause mortality in low- but not high-income participants in the reasons for geographic and racial differences in stroke study. J Am Heart Assoc. 2013;2:e000447.View ArticlePubMedPubMed CentralGoogle Scholar
- Aggarwal NT, Clark CJ, Beck TL, Mendes de Leon CF, DeCarli C, Evans DA, et al. Perceived stress is associated with subclinical cerebrovascular disease in older adults. Am J Geriatr Psychiatry Off J Am Assoc Geriatr Psychiatry. 2014;22:53–62.View ArticleGoogle Scholar
- Salomaa V, Niemela M, Miettinen H, Ketonen M, Immonen-Raiha P, Koskinen S, et al. Relationship of socioeconomic status to the incidence and prehospital, 28-day, and 1-year mortality rates of acute coronary events in the FINMONICA myocardial infarction register study. Circulation. 2000;101:1913–8.View ArticlePubMedGoogle Scholar
- Gerber Y, Benyamini Y, Goldbourt U, Drory Y. For the Israel study group on first acute myocardial infarction. Neighborhood socioeconomic context and long-term survival after myocardial infarction. Circulation. 2010;121:375–83.View ArticlePubMedGoogle Scholar
- Krishnan S, Cozier YC, Rosenberg L, Palmer JR. Socioeconomic status and incidence of type 2 diabetes: results from the black Women’s health study. Am J Epidemiol. 2010;171:564–70.View ArticlePubMedPubMed CentralGoogle Scholar
- Addo J, Ayerbe L, Mohan KM, Crichton S, Sheldenkar A, Chen R, et al. Socioeconomic status and stroke: an updated review. Stroke. 2012;43:1186–91.View ArticlePubMedGoogle Scholar
- Hasson RE, Adam TC, Pearson J, Davis JN, Spruijt-Metz D, Goran MI. Sociocultural and socioeconomic influences on type 2 diabetes risk in overweight/obese African-American and Latino-American children and adolescents. J Obes. 2013;2013:1–9.View ArticleGoogle Scholar
- Schneiderman N, Llabre M, Cowie CC, Barnhart J, Carnethon M, Gallo LC, et al. Prevalence of diabetes among Hispanics/Latinos from diverse backgrounds: the Hispanic community health study/study of Latinos (HCHS/SOL). Diabetes Care. 2014;37:2233–9.View ArticlePubMedPubMed CentralGoogle Scholar
- Marshall IJ, Wang Y, Crichton S, McKevitt C, Rudd AG, Wolfe CDA. The effects of socioeconomic status on stroke risk and outcomes. Lancet Neurol. 2015;14:1206–18.View ArticlePubMedGoogle Scholar