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. 2023 Sep 8;24(1):123. doi: 10.1186/s10194-023-01638-6

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)

Data are represented as mean (standard deviation)

Abbreviations: hrs hours, TST Total sleep time