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Table 2 Summary of noise, noise sensitivity, sleep, social support, somatic symptoms, stress, anxiety and depression (n = 500)

From: Noise sensitivity associated with nonrestorative sleep in Chinese adults: a cross-sectional study

 

Mean

SD

Range

95%CI

Nocturnal noise level (dBA)

51.32

5.61

36.51, 70.67

50.82, 51.82

WNSS (0–100)

60.44

12.09

21.11, 94.44

59.38, 61.50

NRSS (0–100)

64.77

12.75

19.39, 100

63.65, 65.89

 Refreshment from sleep

59.16

16.99

0, 100

57.67, 60.66

 Physical/medical symptoms of NRS

68.60

18.39

21.88, 96.88

66.98, 70.22

 Daytime functioning

63.01

15.47

0, 100

61.65, 64.37

 Affective symptoms of NRS

65.65

21.30

7.69,100

63.78, 67.52

Physiological sleep parameters

 Latency (min)

7.13

6.95

0, 75.71

6.52, 7.74

 Efficiency (%)

78.34

7.74

44.56, 97.84

77.66, 79.02

 Time in bed (min)

441.10

65.17

199.29, 651.5

441.60, 444.09

 Total sleep time (min)

345.07

57.38

178.43, 534.29

345.22, 345.84

 Wake after sleep onset (min)

88.78

37.40

6.17, 245.4

85.50, 92.07

 Awakenings (n)

25.84

7.91

4.29, 50.14

25.14, 26.53

 Average awakenings (min)

3.48

1.33

1.17, 20.14

3.37, 3.60

ESSI

21.39

4.76

6, 30

20.98, 21.81

PHQ

3.93

3.88

0, 19

3.58, 4.30

PSS

15.60

5.31

0, 30

15.12, 16.10

Anxiety

4.43

3.47

0, 16

4.13, 4.75

Depression

5.15

3.44

0, 17

4.83, 5.48

  1. SD standard deviation, CI confidence interval; WNSS Weinstein Noise Sensitivity Scale, NRS nonrestorative sleep, NRSS nonrestorative sleep scale, ESSI ENRICHD Social Support Instrument, PHQ physical health questionnaire, PSS perceived stress scale