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Table 1 Participants’ demographic data and descriptive statistics for each variable

From: Impact of sleep debt, social jetlag, and insomnia symptoms on presenteeism and psychological distress of workers in Japan: a cross-sectional study

 

M

SD

Median

Min

Max

Age

49

9.49

50

22

68

BMI

22.95

3.65

22.4

13.89

40.12

Sleep debt (h)

1.01

0.84

1

0

5.14

Social jetlag (h)

1.18

1.87

0.75

0

19.00

Insomnia symptoms

7.75

5.38

7

0

28

Presenteeism

58.86

16.52

60

0

100

Psychological distress

4.55

5.60

2

0

24

  1. Note. M Mean, SD Standard deviation, BMI Body Mass Index