Table 2.
Comparison of the SF-36 derived Health-related Quality of Life domain scores of good and poor sleepers, and comparison among long sleepers (sleep duration ≥5.5 hours per day) and short sleepers (sleep duration <5.5 hours per day)
| |
All participants |
Good sleepers |
Poor sleepers |
Long sleepers |
Short sleepers |
|---|---|---|---|---|---|
| ( n = 301) | ( n = 67) | n = 234) | ( n = 170) | ( n = 131) | |
| Physical Functioning |
75.91 (17.62) |
81.57** (15.13) |
74.29 (17.97) |
78.65** (15.86) |
72.37 (19.16) |
| Role-Physical |
78.76 (22.54) |
84.98** (19.37) |
76.97 (23.10) |
81.98** (20.46) |
74.57 (24.43) |
| Bodily Pain |
64.86 (28.45) |
79.21*** (22.90) |
60.76 (28.59) |
71.54*** (25.50) |
56.20 (29.80) |
| General Health |
50.24 (19.77) |
58.27*** (19.04) |
47.94 (19.40) |
53.53** (18.68) |
45.97 (20.38) |
| Vitality |
61.09 (23.37) |
72.57*** (18.49) |
57.80 (23.61) |
65.91** (21.23) |
54.82 (24.58) |
| Social Functioning |
88.08 (22.33) |
94.96** (12.51) |
86.11 (24.09) |
91.25* (17.98) |
83.97 (26.46) |
| Role-Emotional |
83.31 (20.47) |
89.55** (16.50) |
81.52 (21.17) |
85.39* (20.12) |
80.60 (20.68) |
| Mental Health | 74.25 (18.93) | 83.36*** (13.91) | 71.65 (19.39) | 78.12*** (16.32) | 69.24 (20.88) |
Data are presented as mean (standard deviation).
*/**/*** Difference between good and poor sleeper significant at the 5%, 1%, and 0.1% level respectively (Hotelling’s T-square test on transformed value that maximizes multivariate normality).
Good sleeper: global PSQI score < 5. Poor sleeper: global PSQI score ≥5.