Table 2.
Comparison of demographic and clinical data between sexes.
| Males (n = 64) | Females (n = 109) | P | |
|---|---|---|---|
| Age, y | 61.80 (9.63) | 58.96 (8.87) | .051 |
| BMI, kg/m2 | 23.35 (2.67) | 22.35 (2.46) | .014* |
| Questionnaire | |||
| PSQI, score | 11.91 (2.60) | 12.31 (2.70) | .156 |
| TIB, min | 373.28 (92.18) | 400.19 (105.35) | .073 |
| TST, min | 230.39 (75.28) | 248.26 (73.58) | .305 |
| SE, % | 64.63 (23.10) | 64.65 (20.32) | .565 |
| SOL, min | 67.49 (58.18) | 82.99 (59.09) | .095 |
| ISI, score | 18.34 (5.20) | 18.03 (5.15) | .771 |
| ESS, score | 7.97 (5.29) | 8.01 (4.92) | .885 |
| BDI-II, score | 16.89 (10.75) | 15.53 (8.35) | .372 |
| BAI, score | 11.16 (11.53) | 12.03 (7.78) | .618 |
| Actigraphy (n = 157) | (n = 57) | (n = 100) | |
| TIB, min | 397.54 (89.63) | 425.65 (75.58) | .053 |
| TST, min | 320.28 (79.82) | 346.97 (60.14) | .040* |
| SE, % | 80.54 (8.78) | 82.02 (7.92) | .464 |
| SOL, min | 6.27 (8.31) | 5.85 (6.47) | .639 |
| WASO, min | 70.99 (35.87) | 72.84 (40.22) | .567 |
| Ratio of TST, % | 76.04 (33.48) | 73.52 (22.12) | .433 |
Pearson’s χ2 test was used for differences between categorical variables and ANCOVA was performed for differences between means. Age was adjusted as a covariate. Data are presented as mean (standard deviation). *P < .05. ANCOVA = analysis of covariance, BMI = body mass index, BAI = Beck Anxiety Inventory, BDI-II = Beck Depression Inventory II, ESS = Epworth Sleepiness Scale, ISI = Insomnia Severity Index, PSQI = Pittsburgh Sleep Quality Index, SE = sleep efficiency, SOL = sleep onset latency, TIB = time in bed, TST = total sleep time, WASO = wake after sleep onset.