Table 2 Comparison and distribution of the Pittsburgh Sleep Quality Index (PSQI) scores among poor and good sleep quality groups
From: Current status of sleep quality in Taiwan: a nationwide walk-in survey
Good sleep qualitya | Poor sleep qualitya | P value | |
|---|---|---|---|
N, % | 406, 53.4 % | 354, 46.6 % | |
Age (years) | 0.221 | ||
Mean ± SD | 54.8 ± 14.1 | 53.5 ± 15.3 | |
Gender (n, %) | 0.064 | ||
Men | 94 (59.9) | 63 (40.1) | |
Women | 298 (51.6) | 280 (48.4) | |
Sleep duration (hours) | <0.001 § | ||
Mean ± SD | 6.8 ± 1.0 | 5.5 ± 1.4 | |
Hypnotics use (days/4 weeks) | <0.001 § | ||
No use | 395 (97.3) | 277 (78.2) | |
1–2 | 9 (2.2) | 23 (6.5) | |
≥3 | 2 (0.5) | 54 (15.3) | |
PSQI scoreb | <0.001 § | ||
Mean ± SD | 3.4 ± 1.3 | 9.1 ± 2.9 | |
Subscale score: mean (SD) | |||
Subjective sleep quality | 0.5 (0.6) | 1.5 (0.8) | <0.001 § |
Sleep latency | 0.6 (0.6) | 1.7 (0.9) | <0.001 § |
Sleep duration | 1.0 (0.8) | 1.8 (0.9) | <0.001 § |
Habitual sleep efficiency | 0.2 (0.4) | 1.1 (1.2) | <0.001 § |
Sleep disturbances | 0.9 (0.4) | 1.3 (0.6) | <0.001 § |
Use of sleeping medication | 0.0 (0.3) | 0.6 (1.2) | <0.001 § |
Daytime dysfunction | 0.2 (0.5) | 1.1 (0.8) | <0.001 § |