Skip to main content

Advertisement

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 §
  1. § value < 0.05
  2. aGood sleep quality: PSQI ≤ five; poor sleep quality: PSQI > five
  3. bPSQI score: Pittsburgh Sleep Quality Index score