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Table 1 Mean (95% CI) characteristics of the sample of 201 adolescents

From: Validity of self-reported leisure-time sedentary behavior in adolescents

  

Girls

 

Boys

 

Combined

 

N

mean (95% CI), %

N

mean (95% CI), %

N

mean (95% CI), %

Age (years)

128

12.6 (12.4, 12.8)

73

12.6 (12.4, 12.9)

201

12.6 (12.4, 12.7)

Height (cm)

128

157.5 (156.0, 158.9)

73

158.2 (155.6, 160.8)

201

157.7 (156.4, 159.1)

Weight (kg)

128

55.9 (53.5, 58.5)

73

53.7 (49.4, 58.2)

201

55.2 (52.9, 57.4)

BMI category (%)

      

   < 85th percentile

 

59

 

73

 

64

   ≥ 85th percentile

 

41

 

27

 

36

Ethnicity (%)

      

   African American

 

14

 

15

 

15

   American Indian

 

1

 

4

 

2

   Asian

 

2

 

3

 

3

   Multiracial

 

14

 

9

 

12

   Hispanic

 

8

 

12

 

9

   White

 

61

 

57

 

60

Accelerometer Sedentary Behaviors (mins)

122

354.6 (342.1, 365.8)

68

338.5 (318.8, 358.2)

190

349.3 (339.1, 359.4)

Self-reported Sedentary Behaviors† (mins)

      

   TV/Video watching

122

174.3 (148.5, 200.1)

68

152.4 (119.9, 184.9)

190

166.1(146.2, 186.4)

   Computer/Internet

122

62.2 (43.1, 81.3)

68

39.7 (20.7, 58.7)

190

54.0 (40.1, 67.9)

   Talking on phone

122

71.3 (51.2, 92.1)*

68

36.5 (10.5, 62.6)*

190

58.9 (42.7, 74.9)

   Video/Computer games

122

15.8 (8.2, 23.4)*

68

43.6 (24.5, 62.6)*

190

25.9 (17.3, 34.4)

  1. * Difference in mean minutes by sex;†Sedentary behavior from modified SAPAC