|
Baseline Characteristics of Participants (Mean ± SD) |
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| YOUNG ADULT |
OLDER |
AGE CONTRAST |
|
|
|
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| Wake-up (questionnaire) |
7:31 ± 1:24 |
5:55 ± 1:18 |
P < 0.001 |
| Actigraphic wake time |
8:32 ± 2:16 |
6:39 ± 1:07 |
P < 0.001 |
| Bedtime (questionnaire) |
23:48 ± 1:03 |
22:51 ± 1:05 |
P < 0.001 |
| Bedtime (actigraph) |
00:33 ± 1:31 |
22:41 ± 1:24 |
P < 0.001 |
| Sleep log total sleep time |
444 ± 65 min |
406 ± 63 min |
P = 0.003 |
| Actigraphic total sleep time |
404 ± 70 min |
385 ± 68 min |
NS |
| aMT6s onset |
23:04 ± 1:45 |
22:16 ± 1:46 |
P = 0.02 |
| aMT6s acrophase |
3:47 ± 1:37 |
3:18 ± 1:58 |
NS |
| aMT6s offset |
08:22 ± 1:28 |
08:20 ± 2:11 |
NS |
| Cortisol acrophase |
9:59 ± 1:54 |
8:29 ± 2:51 |
P = 0.008 |
| Oral Temperature bathyphase |
04:04 ± 2:10 |
04:44 ± 3:52 |
NS |
| PSQI total score |
3.8 ± 2.3 |
3.6 ± 2.7 |
NS |
| CESD at intake |
7.0 ± 7.0 |
3.5 ± 3.6 |
P = 0.002 |
|
NS = Not Significant. Temperature bathyphase: the fitted minimum, 180° from the acrophase. | |||
Kripke et al. Journal of Circadian Rhythms 2007 5:4 doi:10.1186/1740-3391-5-4 |
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