Table 1.
Characteristics of Rotterdam Study participants and Whitehall II Study participants with cortisol data.
| Rotterdam Study | Whitehall II Study | |
|---|---|---|
| (n=1711) | (n=2836) | |
| Gender (male) | 45.4% | 77.7% |
| Age (yrs.) | 74.9(5.7) b | 60.9 (5.9) b |
| Education | ||
| -university/polytechnic | 12.0% | 37.1% |
| Smoking | 12.5% | 7.7% |
| Diabetes Mellitus Type II | 5.4% | 6.6% |
| Coronary Heart Disease | 13.2% | 4.5% |
| Hypnotics | 14.1% | 1.2% |
| Antidepressants/Antipsychotics | 4.5% | 4.0% |
| Cortisol (nmol/L) | ||
| -at awakening | 13.17(0.01-42.97) | 14.80(0.10-40.05) |
| -30min. after awakening | 16.80(0.06-51.12) | 21.82(0.01-54.52) |
| -8h. after awakening | 3.42(0.01-19.09 | 5.13(0.00-19.50) |
| -at bedtime | 1.64(0.02-13.42) | 1.50(0.00-13.59) |
| CortisolAUC (nmol/L) | 8.14(3.47) b | 6.93(2.29) b |
Numbers are median (100% range) unless otherwise indicated
a
t test and Mann Whitney test for continuous variables and Chi-square tests for dichotomous variables.
b
mean (standard deviation)