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Table 3 Comparison and distribution of the Pittsburgh Sleep Quality Index (PSQI) scores of poor-sleep-quality participants in different areas (N = 354)

From: Current status of sleep quality in Taiwan: a nationwide walk-in survey

 

Northern (N = 195)

Middle (N = 289)

Southern (N = 228)

Eastern (N = 48)

P value

Total (N = 760)

Number

113

132

91

18

<0.001 §

354

n, %

57.9 %

45.7 %

39.9 %

37.5 %

 

46.6 %

Age (years)a

    

<0.001 §

 

 Mean ± SD

44.4 ± 10.8

53.5 ± 14.3

62.1 ± 15.2

67.8 ± 9.1

 

53.5 ± 15.3

Gender (n, %)

    

<0.001 §

 

 Men

6 (5.4)

37 (29.6)

13 (14.4)

7 (38.9)

 

63 (40.1)

 Women

104 (94.6)

88 (70.4)

77 (85.6)

11 (61.1)

 

280 (48.4)

Sleep duration (hours)b

    

0.002 §

 

 Mean ± SD

5.1 ± 1.3

5.7 ± 1.2

5.6 ± 1.7

5.8 ± 1.7

 

5.5 ± 1.4

Hypnotics use (days/4 weeks)

    

<0.001 §

 

 No use

103 (91.2)

105 (79.5)

63 (69.2)

6 (33.3)

 

277 (78.2)

 1–2

3 (2.6)

8 (6.1)

11 (12.1)

1 (5.6)

 

23 (6.5)

 ≥3

7 (6.2)

19 (14.4)

17 (18.7)

11 (61.1)

 

54 (15.3)

PSQI score#

    

0.149

 

 Mean ± SD

9.2 ± 2.8

8.8 ± 2.7

9.2 ± 3.2

10.4 ± 3.6

 

9.1 ± 2.9

Subscale score: mean ± SD

      

 Subjective sleep quality

1.6 ± 0.6

1.5 ± 0.8

1.4 ± 0.9

1.8 ± 0.9

0.074

1.5 ± 0.8

 Sleep latency

1.5 ± 0.8

1.7 ± 0.8

2.0 ± 0.9

2.1 ± 1.0

<0.001 §

1.7 ± 0.9

 Sleep duration

2.1 ± 0.8

1.7 ± 0.9

1.7 ± 0.9

1.8 ± 1.0

<0.001 §

1.8 ± 0.9

 Habitual sleep efficiency

1.1 ± 1.1

1.0 ± 1.2

1.3 ± 1.3

0.8 ± 1.1

0.378

1.1 ± 1.2

 Sleep disturbances

1.4 ± 0.6

1.4 ± 0.6

1.3 ± 0.6

1.0 ± 0.3

0.041 §

1.3 ± 0.6

 Use of sleeping medication

0.3 ± 1.0

0.5 ± 1.1

0.7 ± 1.2

1.9 ± 1.5

<0.001 §

0.6 ± 1.2

 Daytime dysfunction

1.3 ± 0.9

1.0 ± 0.7

0.9 ± 0.8

1.0 ± 0.8

0.004 §

1.1 ± 0.8

  1. #PSQI score: Pittsburgh Sleep Quality Index score
  2. § P value < 0.05
  3. aThe northern and middle areas are significantly different from other areas
  4. bThe northern area is significantly different from other areas