Table 1 General characteristics of the participants (n = 9981).

From: Age, sex and race distribution of accelerometer-derived sleep variability in US school-aged children and adults

Variables

Values

Age, years

41.9 ± 21.5

Female, %

53.3

Race, %

 NH White

65.3

 NH Black

11.0

 Mexican American

10.0

 Other race

13.7

Sleep duration SD, hours

0.98 ± 0.49

Catch-up sleep, hours

1.27 ± 1.02

Midpoint of sleep SD, hours

0.72 ± 0.43

Social jetlag, hours

1.08 ± 0.92

  1. For continuous traits, data are present as mean ± SD.
  2. NH Non-Hispanic.
Back to article page