Skip to main content

Advertisement

Table 4 Comparisons of Cortisol Excretion Rate (μg/24h) at Work, Home, and during Sleep by Age Group and Ethnicitya

From: The effects of age and ethnicity on the circadian variation of catecholamines and cortisol in employed women

Ethnicity   Age Group
18–29.9 30–39.9 40–49.9
Work Home Sleep Work Home Sleep Work Home Sleep
N \( \overline{\mathrm{x}} \) SD \( \overline{\mathrm{x}} \) SD \( \overline{\mathrm{x}} \) SD N \( \overline{\mathrm{x}} \) SD \( \overline{\mathrm{x}} \) SD \( \overline{\mathrm{x}} \) SD N \( \overline{\mathrm{x}} \) SD \( \overline{\mathrm{x}} \) SD \( \overline{\mathrm{x}} \) SD
European-American 7 45.22 40.82 26.14 33.00 13.12 6.05 17 41.97 30.51 30.55 39.60 29.84 14.58 12 36.91 23.82 21.89 39.60 33.48 13.73
African-American 13 43.12 28.12 18.13 13.02 47.09 60.76 8 26.04 21.34 26.85 32.59 37.00 36.82 7 52.0 64.46 23.04 24.69 16.60 5.97
Asian-American 3 19.21 9.26 8.71 3.33 25.93 18.14 4 82.14 61.76 15.52 5.22 54.22 28.09 5 37.05 26.42 16.96 12.47 59.49 47.82
Hispanic American 8 66.86 49.38 22.69 16.96 26.07 17.52 5 24.13 15.40 8.58 5.81 21.05 6.50 4 27.13 7.08 27.21 25.26 36.91 32.35
Total 31 47.41 37.60 20.20 19.45 31.95 42.10 34 40.33 35.01 24.68 32.57 33.10 23.51 28 39.32 36.48 22.06 20.39 34.39 27.20
  1. \( \overline{\mathrm{x}} \) mean, SD standard deviation
  2. aWork>Home Sleep by ethnicity, age and overall, p < .001; Sleep>Home bu ethnicity, age and overall, p < 002