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Table 2 Distribution of quality of sleep

From: Subjective sleep quality and association with depression syndrome, chronic diseases and health-related physical fitness in the middle-aged and elderly

Variable items Number Percent
Sleep duration (h)
 0: ≥7 197 69.6
 1: 6 ~ 6.9 66 23.3
 2: 5 ~ 5.9 15 5.3
 3: ≤4.9 5 1.8
Sleep disturbance (scores)
 0: 0 19 6.7
 1: 1 ~ 9 246 86.9
 2: 10 ~ 18 17 6.0
 3: 19 ~ 27 1 0.4
Sleep latency (min)
 0: ≤15 142 50.2
 1: 16 ~ 30 65 23.0
 2: 31 ~ 60 46 16.3
 3: ≥60 30 10.6
Daytime dysfunction
 0: Very good 213 75.3
 1: Fairly good 49 17.3
 2: Fairly bad 19 6.7
 3: Very bad 2 0.7
Sleep efficiency (%)
 0: ≥85 248 87.6
 1: 75 ~ 84 23 8.1
 2: 65 ~ 74 7 2.5
 3: ≤64 5 1.8
Subjective sleep quality
 0: Very good 32 11.3
 1: Fairly good 162 57.2
 2: Fairly bad 63 22.3
 3: Very bad 26 9.2
Use of sleep medication
 0: Not during past month 237 83.7
 1: Less than once a week 10 3.5
 2: Once or twice a week 7 2.5
 3: Three or more times a week 29 10.2
Global sleep quality
 Good quality (≤5) 204 72.1
 Poor quality (> 5) 79 27.9