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Table 5 Tobit regression model for school and club MVPA (mins/wk)

From: Physical activity and sedentary behavior among adolescents in rural South Africa: levels, patterns and correlates

 

Coefficient

SE

95% CI

P

Individual characteristics

    

Age category

    

 11–12 years (ref)

0

   

 14–15 years

-166

108.2

-379, 47

0.126

BMI

-2.2

6.5

-15, 11

0.732

Sex

    

 Boy (ref)

0

   

 Girl

-265

39.5

-343, -187

0.000

Pubertal status

    

 Pre-pubertal (ref)

0

   

 Mid-pubertal

-73

52

-176, 29

0.161

 Post-pubertal

-123

132.6

-385, 138

0.353

Maternal characteristics

    

Age

-4.1

2.7

-9, 1

0.139

Nationality

    

 South African (ref)

0

   

 Mozambican

12.5

52.8

-92, 116

0.813

Education

    

 Pre-school (ref)

0

   

 Primary school

-105.5

62.6

-229, 18

0.093

 Secondary school

-171.6

79.4

-328, -15

0.032

Age category x maternal education

121.7

46.4

30, 213

0.009

Household characteristics

    

Sex

    

 Male (ref)

0

   

 Female

25

42

-58, 108

0.552

Education

    

 Pre-school (ref)

0

   

 Primary school

66.3

50

-32,165

0.186

 Secondary school

5.7

59

-111, 122

0.923

Food security

    

 Yes (ref)

0

   

 No

55.7

49.9

-43, 154

0.265

SES (wealth index tertile)

    

 Lowest (ref)

0

   

 Medium

63.2

48.9

-33, 160

0.198

 Highest

128

51.6

27, 230

0.014

Community characteristics

    

Area of residence

    

 Predominantly South African (ref)

0

   

 Predominantly Mozambican

41.4

80.2

-117, 200

0.606

  1. SE, standard error.