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. 2018 Sep 19;15(9):2055. doi: 10.3390/ijerph15092055

Table 3.

Gender and age category scores of PSQI component scores and total score in all participants.

Variables Overall (n = 6905) Male (n = 4120) Female (n = 2785) t p 18–39 Years (n = 727) 40–59 Years (n = 2570) ≥60 Years (n = 3608) F p
Self-rated sleep quality, M ± SD 1.29 ± 0.01 1.24 ± 0.01 1.38 ± 0.02 7.30 0.000 1.04 ± 0.75 1.26 ± 0.79 1.37 ± 0.78 59.83 0.000
Sleep latency, M ± SD 1.28 ± 0.01 1.22 ± 0.01 1.37 ± 0.02 7.17 0.000 1.14 ± 0.79 1.24 ± 0.82 1.34 ± 0.83 24.68 0.000
Sleep duration, M ± SD 0.77 ± 0.01 0.76 ± 0.01 0.77 ± 0.02 0.68 0.50 0.64 ± 0.81 0.73 ± 0.81 0.82 ± 0.81 18.72 0.000
Sleep efficiency, M ± SD 0.16 ± 0.01 0.13 ± 0.01 0.19 ± 0.01 4.90 0.000 0.11 ± 0.40 0.13 ± 0.43 0.18 ± 0.49 11.52 0.000
Sleep disturbance, M ± SD 1.42 ± 0.01 1.38 ± 0.01 1.48 ± 0.01 5.15 0.000 1.12 ± 0.71 1.38 ± 0.72 1.54 ± 0.74 120.29 0.000
Need for sleep medications, M ± SD 0.20 ± 0.01 0.19 ± 0.01 0.22 ± 0.01 1.64 0.10 0.42 ± 0.93 0.21 ± 0.63 0.15 ± 0.49 59.84 0.000
Daytime dysfunction, M ± SD 1.27 ± 0.01 1.24 ± 0.01 1.31 ± 0.02 3.20 0.0014 1.06 ± 0.96 1.20 ± 0.93 1.35 ± 0.93 40.99 0.000
PSQI total score, M ± SD 6.39 ± 2.99 6.17 ± 0.04 6.72 ± 0.06 7.47 0.000 5.53 ± 3.17 6.12 ± 2.96 6.76 ± 2.91 69.89 0.000

M: mean; SD: standard deviation; PSQI: Pittsburgh Sleep Quality Index.