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Table 2 Male and female salivary cortisol levels in different age-groups.

From: Salivary cortisol differs with age and sex and shows inverse associations with WHR in Swedish women: a cross-sectional study

  Morning cortisol Evening cortisol Δ-cortisol
Age-group n m q1–q3 p n m q1–q3 p n m q1–q3 p
Women
30–39 242 12.4 9.0–17.0 ref. 242 1.7 1.0–3.0 ref. 242 5.8 3.7–10.0 ref.
40–49 291 12.4 8.0–19.0 0.892 291 2.2 2.0–3.0 0.834 291 5.7 3.7–9.0 0.768
50–59 146 11.6 8.7–15.2 0.260 146 2.5 2.0–3.0 0.030 146 4.7 3.0–8.0 0.005
60–69 107 12.7 10.0–18 0.732 107 2.7 2.0–4.0 0.004 107 4.7 3.3–7.5 0.015
≥ 70 52 15.1 9.2–19.8 0.029 52 3.6 2.0–6.0 <0.001 52 4.2 2.3–9.0 0.004
<50 533 12.4 9.0–18.0 ref. 533 2.2 1.4–3.0 ref. 533 5.8 3.7–9.5 ref.
≥ 50 305 12.5 9.0–18.0 0.773 305 2.7 2.0–3.0 <0.001 305 4.6 3.0–8.0 <0.001
Men
30–39 254 10.4 7.0–15.0 ref. 254 2.0 1.0–3.0 ref. 254 5.3 3.5–9.0 ref.
40–49 276 10.6 8.0–15.0 0.634 276 2.2 2.0–3.0 0.101 276 4.9 3.0–8.0 0.288
50–59 141 11.8 8.0–18.0 0.030 141 2.4 2.0–3.0 0.007 141 5.0 3.0–8.0 0.460
60–69 106 12.5 8.0–17.3 0.006 106 2.5 2.0–3.0 0.001 106 4.9 3.3–7.6 0.459
≥ 70 56 12.3 9.0–16.8 0.049 56 2.9 2.0–4.0 <0.001 56 4.2 3.0–6.5 0.040
<50 530 10.5 7.0–15.0 ref. 530 2.1 1.0–3.0 ref. 530 5.1 3.3–8.5 ref.
≥ 50 303 12.1 8.0–18.0 0.001 303 2.5 2.0–3.0 <0.001 303 4.8 3.0–7.7 0.305
  1. Δ-cortisol=logarithmic morning salivary cortisol-logarithmic evening salivary cortisol
  2. Differences between age-groups were examined by GLM (general linear model), using group 30–39 and group <50, respectively, as reference. Means and quartiles 1–3 (q1–q3) are geometric (anti-log).