Table 2 Descriptive statistics for the sleep variables for the overall sample
|  | Overall sample (n = 11,086) | Older Adults (n = 2118) | Young Adults (n = 1729) | Age unknown (n = 7239) | Female (n = 5911) | Male (n = 1276) | Gender unknown (n = 3899) |
|---|---|---|---|---|---|---|---|
TST | 7.45 (1.00) | 7.46 (1.04) | 7.53 (0.95) | 7.43 (1.00) | 7.55 (1.00) | 7.36 (0.96) | 7.34 (1.01) |
Sleep Start Time (hrs) | 23.55 (1.34) | 23.40 (1.42) | 23.75 (1.41) | 23.55 (1.29) | 23.50 (1.38) | 23.62 (1.35) | 23.60 (1.27) |
Sleep End Time (hrs) | 31.21 (1.24) | 31.10 (1.27) | 31.54 (1.23) | 31.17 (1.22) | 31.28 (1.25) | 31.15 (1.31) | 31.13 (1.19) |
Time in Bed (hrs) | 7.66 (1.22) | 7.71 (1.28) | 7.79 (1.27) | 7.62 (1.18) | 7.78 (1.25) | 7.53 (1.10) | 7.54 (1.18) |
Time Awake (hrs) | 0.21 (0.69) | 0.25 (0.76) | 0.26 (0.78) | 0.19 (0.64) | 0.23 (0.75) | 0.17 (0.51) | 0.19 (0.63) |
Sleep Efficiency (%) | 99.00 (0.03) | 98.00 (0.04) | 98.00 (0.04) | 99.00 (0.03) | 99.00 (0.04) | 99.00 (0.03) | 099.00 (0.03) |
Sleep Interruptions | 0.12 (0.18) | 0.13 (0.20) | 0.13 (0.18) | 0.12 (0.18) | 0.12 (0.19) | 0.10 (0.17) | 0.13 (0.17) |