Table 1 Descriptive statistics for primary variables of interest

From: Bidirectional associations between sleep and physical activity investigated using large-scale objective monitoring data

Variable

Total sample

Country (Top 5 by user count)

Age (years)

  

USA

Germany

France

UK

Japan

19–33

34–53

54+ 

Age

48 (12)

47.2

51.4

49.4

48.0

46.6

29.4

43.9

62.6

BMI

27.7 (4.9)

28.6

28.2

26.9

28.0

25.1

26.5

27.9

27.9

Male %

82

79

83

81

84

92

82

84

80

Sleep duration (hrs)

7.1 (0.8)

7.1

7.1

7.2

7.2

6.4

7.2

7.1

7.1

SOL

30 (11)

33

28

30

32

29

34

31

28

SE

87(6)

86

88

88

86

86

86

87

88

Step count

5521

5999

6281

5825

6468

5926

6077

6325

5855

  1. Note. Mean values are provided for the total sample, the top five countries by user count, and for young-adult (19-33 years), adult (34-53 years), and older-adult (54+ years) age ranges. Standard deviations are parenthesised.
  2. SOL sleep onset latency (mins), SE sleep efficiency (%), BMI body mass index (Kg/m2).
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