Table 6.
MrOS (men): adjusted odds of a false-positive designation (short sleep by self-report but normal sleep duration by actigraphy).
| Characteristicsa | Adjusted OR (95% CI)b |
|---|---|
| Age (per year) | 0.99 (0.96, 1.01) |
| Non-White race | 0.74 (0.49, 1.12) |
| Less than high school | 0.65 (0.37, 1.13) |
| Living alone | 0.68 (0.46, 1.01) |
| Obesity | 0.46 (0.32, 0.65) |
| Hypertension | 1.20 (0.91, 1.58) |
| CHF | 0.76 (0.46, 1.27) |
| Physical inactivity (per SD increase) | 1.13 (0.99, 1.30) |
| Caffeine intake ≥ 190 mg/d | 0.78 (0.59, 1.03) |
| Alcohol use (drinks per week) | 0.97 (0.94, 1.01) |
| Poor sleep quality (PSQI item 9 score > 1) | 1.39 (1.03, 1.86) |
| Daytime sleepiness (ESS score > 10) | 0.75 (0.51, 1.10) |
| Daily napping | 0.64 (0.45, 0.92) |
| SDB | 0.68 (0.50, 0.92) |
Included men with short sleep duration by self-report (n = 984). Participants having a false-positive designation (n = 510) were compared with those having a true-positive designation (short sleep duration by self-report and actigraphy; n = 474). aSee footnotes to Table 1 regarding sample sizes for clinical characteristics. bFrom a multivariable model, including all demographic and clinical characteristics listed in Table 1, that was derived using backward selection with P ≤ .20 to remain in the model. The model maxRSQCv_PCT was 9.34, explaining 9% of total variance in the outcome. CHF = congestive heart failure, CI = confidence interval, MrOS = Osteoporotic Fractures in Men Sleep Study, OR = odds ratio, PSQI = Pittsburgh Sleep Quality Index, SD = standard deviation, SDB = sleep-disordered breathing.