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Table 2 Average scores (standard deviations) in the used scales after grouping the participants by sleep hygiene awareness, sleep quality and diurnal preference (please see text for details)

From: Sleep hygiene awareness: its relation to sleep quality and diurnal preference

Group

Sleep beliefs scale

Sleep condition indicator

Composite scale of morningness

Sleep hygiene awareness

   

Low (N = 139)

2.9 (2.2)

10.3* (7.2)

34.9 (6.9)

Intermediate (N = 349)

9.1 (1.9)

12.1 (7.3)

34.6 (7.4)

High (N = 158)

14.8 (1.7)

13.2 (8.0)

35.1 (7.8)

Sleep quality

   

Poor (N = 140)

10.9 (4.5)

23.1 (3.3)

33.2 (8.6)

Intermediate (N = 356)

9.3 (4.3)

11.5 (3.6)

34.5 (6.9)

Good (N = 150)

8.1* (4.6)

2.9 (1.7)

37.2* (6.6)

Diurnal preference

   

Evening (N = 65)

9.6 (4.6)

16.0* (7.5)

21.1 (2.7)

Intermediate (N = 499)

9.1 (4.4)

11.7 (7.7)

34.8 (4.9)

Morning (N = 82)

9.4 (4.5)

10.5 (7.7)

45.9 (1.9)

  1. Significant differences are starred.