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Table 1 Descriptive characteristics of the study sample

From: Associations of activity, sedentary, and sleep behaviors with cognitive and social-emotional health in early childhood

Variables

Mean (SD) or n (%)

Range

Sample characteristics (n = 388)

 

Age (months)

51.5 (9.46)

33 to 70

Sex

 

 Female

173 (44.4)

Race

 

 White

237 (61.1)

 Black/African American

33 (8.5%)

 Asian

14 (3.6%)

 Native Hawaiian/Pacific Islander

2 (0.5%)

 Two or more racial groups

41 (10.6%)

 Other

32 (8.2%)

 Missing

29 (7.5%)

Hispanic ethnicity

 

 Yes

100 (25.8)

 

 No

268 (69.1)

 Missing

20 (5.1)

Socioeconomic status (score)

4.56 (1.98)

1 to 7

24-h Movement Behaviors (‘absolute’ means)

 

 Sedentary time (min)

311.7 (72.1)

129.8 to 575.8

 Light physical activity (min)

312.5 (41.5)

169.3 to 434.7

 MVPA (min)

114.3 (39.7)

18.9 to 292.3

 Sleep time (min)

683.6 (45.6)

547.9 to 816.7

 Daily cycle weartime (min)

1422.1 (62.3)

1159.0 to 1590.5

24-h Movement Behaviors (compositional means)

 

 Sedentary time (min)

314.7 (−)

 Light physical activity (min)

316.3 (−)

 MVPA (min)

115.8 (−)

 Sleep time (min)

693.2 (−)

Cognitive health

 

 Receptive vocabulary (PPVT score; n = 328)

86.1 (25.6)

10 to 141

 Visuospatial memory accuracy score (%; n = 62)

68.9 (13.7)

33.0 to 91.7

 Procedural memory learning score (n = 40)

0.0554 (0.0414)

− 0.0291 to 0.138.3

 Executive attention accuracy score (%; n = 60)

65.6 (14.5)

38.2 to 98.7

Social-emotional health

 

 Surgency/extraversion score (n = 325)

4.49 (0.763)

2 to 6.7

 Negative affectivity score (n = 324)

3.75 (0.919)

1.4 to 6.5

 Effortful control score (n = 327)

5.00 (0.761)

2.2 to 6.8

 Externalizing behavior problem score (n = 359)

8.51 (7.84)

0 to 44

 Internalizing behavior problem score (n = 371)

5.11 (5.82)

0 to 52

  1. MVPA: moderate- to vigorous-intensity physical activity