Table 4: Descriptive characteristics of PSQI-SF-36 QOL scores and scales correlation.

PSQI - Subscales (0-21)

Mean

Min

Max

SD*

1.                Sleep quality

1.2

0.0

3.0

0.9

2.                Sleep latency

1.4

0.0

3.0

0.9

3.                Sleep duration

0.6

0.0

3.0

0.8

4.                Habitual sleep efficiency

0.7

0.0

3.0

1.1

5.                Sleep disturbance

1.6

1.0

3.0

0.5

6.                Use of sleeping medication

0.0

0.0

1.0

0.1

7.                Daytime dysfunction

0.9

0.0

3.0

0.8

Global Score

6.8

0.0

17

3.6

SF-36 QOL- Subscales (0-100)

Mean

Min

Max

SD

1.                Physical function

36.9

0.0

66.7

14.6

2.                Role difficulty (physical)

21.6

0.0

62.5

20.5

3.                Pain

33.8

0.0

81.8

18.5

4.                General health

35.3

0.0

60.0

9.5

5.                Vitality (energy)

34.1

0.0

66.7

15.3

6.                Social function

34.6

0.0

80.0

14.7

7.                Role difficulty (emotional)

25.3

0.0

50.0

20.0

8.                Mental health

36.3

0.0

63.3

10.4

Global Score

32.4

0.0

74.3

12.8

SF-36 QOL scale**

 

 

Physical

Function

Role difficulty

Physical

Pain

General health

Vitality

 

Social

Function

Role difficulty

Emotional

Mental

Health

PSQI

r

-0.322*

-0.280*

0.386*

0.116

0.140*

-0.098

-0.251*

0.027

p

0.000

0.000

0.000

0.059

0.022

0.109

0.000

0.656

*SD; standard deviation; **Pearson correlation analysis, p < 0.05