Table 2.
Descriptive Statistics for Salivary Cortisol
| Sample collection times | Mean | SD (BP), in minutes | SD (WP), in minutes |
|---|---|---|---|
| Waking | 06:45 hr | 62 | 43 |
| 30 min after waking | 07:19 hr | 62 | 43 |
| Before lunch | 12:49 hr | 51 | 51 |
| Late afternoon | 17:27 hr | 54 | 42 |
| Before bed | 22:41 hr | 62 | 36 |
| Sample levels (nmol/l) | Mean | SD (BP) | SD (WP) |
| Waking | 9.19 | 4.02 | 3.93 |
| 30 min after waking | 12.32 | 4.74 | 4.78 |
| Before lunch | 4.02 | 1.97 | 1.81 |
| Late afternoon | 3.04 | 2.65 | 1.89 |
| Before bed | 2.77 | 2.87 | 2.17 |
Note: SD (BP) = standard deviation between person; SD (WP) = standard deviation within person across days.