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Table 3 Odds ratios (OR) and 95% confidence intervals (95% CI) of physical inactivity by sedentary behaviors for males (N = 5057)

From: Associations between physical inactivity and sedentary behaviors among adolescents in 10 cities in China

 

No PA1

Insufficient PA2

 

Univariate

Multivariate

Univariate

Multivariate

 

OR

95% CI

OR

95% CI

OR

95% CI

OR

95% CI

Grade

        

7th-9th

1.00

 

1.00

 

1.00

 

1.00

 

10th-12th

5.72*

(4.86, 6.72)

5.48*

(4.64, 6.47)

2.27*

(1.96, 2.64)

2.26*

(1.94, 2.64)

BMI

        

Low/normal

1.00

 

1.00

 

1.00

-

1.00

 

Overweight

0.88

(0.70, 1.11)

0.95

(0.74, 1.22)

0.91

(0.73, 1.13)

0.93

(0.75, 1.16)

Obese

1.00

(0.75, 1.34)

1.21

(0.88, 1.65)

0.91

(0.69, 1.20)

0.97

(0.73, 1.29)

Paternal level of education

        

Some primary school

1.00

 

1.00

 

1.00

-

1.00

 

Completed middle school

0.95

(0.77, 1.17)

0.99

(0.76, 1.29)

0.83

(0.68, 1.02)

0.92

(0.72, 1.19)

Completed high school

0.70

(0.57, 0.87)

0.77

(0.58, 1.02)

0.84

(0.69, 1.02)

0.97

(0.75, 1.27)

Completed higher education

0.58*

(0.46, 0.74)

0.86

(0.60, 1.23)

0.75

(0.61, 0.93)

0.96

(0.70, 1.32)

Maternal level of education

        

Some primary school

1.00

 

1.00

 

1.00

-

1.00

 

Completed middle school

0.93

(0.77, 1.13)

1.05

(0.81, 1.35)

0.83

(0.69, 1.0)

0.89

(0.70, 1.13)

Completed high school

0.73

(0.59, 0.90)

1.0

(0.75, 1.32)

0.77

(0.63, 0.93)

0.84

(0.65, 1.09)

Completed higher education

0.58*

(0.45, 0.74)

1.08

(0.75, 1.55)

0.75

(0.60, 0.94)

1.02

(0.74, 1.41)

Monthly family income

        

<1000 RMB

1.00

 

1.00

 

1.00

-

1.00

 

1000–1500 RMB

1.00

(0.64, 1.55)

1.13

(0.70, 1.82)

0.97

(0.62, 1.51)

0.97

(0.61, 1.55)

1500–2000 RMB

0.52

(0.34, 0.80)

0.60

(0.37, 0.96)

0.84

(0.55, 1.29)

0.86

(0.55, 1.36)

2000–3000 RMB

0.65

(0.43, 0.97)

0.81

(0.51, 1.27)

0.95

(0.64, 1.43)

0.98

(0.63, 1.52)

3000–4000 RMB

0.52

(0.35, 0.78)

0.71

(0.45, 1.10)

0.76

(0.51, 1.13)

0.81

(0.53, 1.25)

4000–5000 RMB

0.51

(0.34, 0.78)

0.78

(0.49, 1.24)

0.81

(0.53, 1.21)

0.91

(0.58, 1.42)

>RMB 5000

0.32*

(0.21, 0.47)

0.49*

(0.31, 0.77)

0.55*

(0.37, 0.81)

0.62

(0.40, 0.95)

Subjective SES in province

        

Low

1.00

 

1.00

 

1.00

-

1.00

-

Low middle

1.11

(0.56, 2.19)

1.35

(0.63, 2.90)

0.79

(0.41, 1.53)

0.78

(0.38, 1.60)

Middle

0.78

(0.41, 1.53)

1.29

(0.61, 2.74)

0.83

(0.44, 1.56)

0.94

(0.47, 1.92)

High middle

0.48*

(0.25, 0.92)

1.28

(0.59, 2.74)

0.67

(0.35, 1.26)

1.04

(0.51, 2.14)

High

0.37*

(0.18, 0.73)

1.44

(0.64, 3.23)

0.49*

(0.25, 0.96)

1.01

(0.48, 2.15)

Subjective SES in school

        

Low

1.00

 

1.00

 

1.00

-

1.00

-

Low middle

0.79

(0.40, 1.55)

0.71

(0.34, 1.50)

0.86

(0.44, 1.68)

0.84

(0.41, 1.70)

Middle

0.89

(0.47, 1.69)

0.74

(0.37, 1.49)

1.04

(0.56, 1.94)

0.91

(0.46, 1.77)

High middle

0.51

(0.27, 0.97)

0.44*

(0.22, 0.89)

0.71

(0.38, 1.32)

0.61

(0.31, 1.19)

High

0.41*

(0.21, 0.79)

0.45*

(0.22, 0.95)

0.48*

(0.25, 0.93)

0.48*

(0.24, 0.96)

Television viewing

        

None

1.00

 

1.00

 

1.00

 

1.00

 

>0-2 hours

0.81*

(0.69, 0.95)

0.81*

(0.68, 0.96)

1.21*

(1.05, 1.39)

1.21*

(1.04, 1.41)

>2-4 hours

0.70

(0.49, 1.00)

0.64

(0.43, 0.96)

0.73

(0.51, 1.03)

0.75

(0.52, 1.09)

>4 hours

0.40*

(0.23, 0.70)

0.34*

(0.18, 0.64)

0.38*

(0.22, 0.66)

0.42*

(0.23, 0.76)

Computer use

        

None

1.00

 

1.00

 

1.00

 

1.00

 

>0-2 hours

1.04

(0.88, 1.24)

1.06

(0.88, 1.28)

1.08

(0.92, 1.27)

1.00

(0.84, 1.18)

>2-4 hours

0.96

(0.69, 1.35)

1.04

(0.71, 1.51)

0.81

(0.58, 1.12)

0.82

(0.58, 1.16)

>4 hours

0.56*

(0.36, 0.86)

0.64

(0.39, 1.05)

0.41*

(0.27, 0.63)

0.49*

(0.30, 0.78)

  1. Covariate: Grade, BMI, Paternal level of education, Maternal level of education, Monthly family income, Subjective SES in province, Subjective SES in school.
  2. 1MVPA on 0 days: spent 0 day out of the past 7 days with at least 60 minutes of moderate-to-vigorous physical activity (MVPA).
  3. 2MVPA on 1–4 days: spent less than 5 days out of the past 7 days with at least 60 minutes of MVPA.
  4. *p < 0.05.