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Sample characteristics by study group.
| Control (n=71) Mean/n (SD/%) | Insomnia (n=93) Mean/n (SD/%) | |
|---|---|---|
| Age, mean | 67.6 (5.6) | 67.9 (6.9) |
| White/Caucasian, n | 66 (93%) | 84 (90.3%) |
| Women, n | 42 (59.2%) | 67 (72%) |
| Medications, n | 4.8 (2.8) | 6.2 (4.1) |
| Apnea-hypopnea index, mean events/h | 5.3 (4.7) | 5.4 (5.0) |
Standard deviation (SD) or percent of sample in parentheses. Apnea-hypopnea index information was unavailable for 1 participant in the control group.
