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Table 2 Bivariate associations with recreational screen based sedentary behavior

From: Perceived neighborhood safety related to physical activity but not recreational screen-based sedentary behavior in adolescents

 

≥4 Hours Recreational Screen time per Day

N = 245,305; n = 2152

CI = 206,106 – 284,503

<4 Hours Recreational Screen–time per Day N = 229,463; n = 1868

CI = 194,206 – 264,719

χ 2

Demographic variables

Sex

   

 Female

48.1% (44.8% – 51.3%)

53.0% (49.4% – 56.6%)

4.17*

 Male

51.9% (48.7% – 55.2%)

47.0% (43.4 – 50.6%)

4.17*

Age

   

  < 16 years

42.9% (35.6% – 50.6%)

37.9% (30.8% – 45.7%)

 

  ≥ 16 years

57.1% (49.4% – 64.4%)

62.1% (54.3% – 69.2%)

3.88*

Race

   

 Non–Hispanic white

67.8% (59.3% – 75.2%)

74.2% (67.6% – 79.8%)

12.67***

 Non–Hispanic black

18.1% (12.5% – 25.5%)

12.1% (8.1% – 17.7%)

9.65**

 Hispanic

9.2% (6.9% – 12.2%)

7.6% (5.2% – 10.8%)

3.57

 Asian

1.7% (1.2% –2.4%)

3.1% (2.2% –4.3%)

10.28***

 Other

3.2% (2.5% – 4.0%)

3.1% (2.3% – 4.1%)

0.02

Academic achievement

 Earned mostly A’s & B’s

78.4% (74.4% – 81.9%)

87.5% (83.6% – 90.5%)

21.28***

Overweight or obese

34.2% (31.1% – 37.5%)

24.6% (21.2% – 28.3%)

14.28***

Environmental level variables

 Philadelphia City

5.6% (4.3% – 7.1%)

4.4% (3.4% – 5.7%)

8.07**

Perceived safety

 Rarely/never feel safe

7.9% (6.3% – 9.9%)

7.2% (5.3% – 9.6%)

0.51

Health related variables

  ≥ 5 days physical activity

39.5% (35.7% – 43.5%)

51.1% (47.2% – 55.0%)

19.34***

  ≥ 1 day PE/week

59.3% (51.3% – 66.9%)

57.8% (49.0% – 66.1%)

0.29

  ≥ 1 sports teams

55.0% (51.5% – 58.4%)

67.2% (63.1% – 71.0%)

27.09***

  ≥ 8 h sleep/night

25.0% (22.5% – 27.7%)

26.3% (23.3% – 29.6%)

0.55

 Current alcohol use

29.5% (26.0% – 33.3%)

31.8% (28.0% – 35.8%)

0.97

 Current cigarette use

12.4% (9.7% – 15.6%)

11.4% (9.0% – 14.4%)

0.47

  ≥ 2 servings fruit/day

27.2% (24.5% – 30.0%)

30.7% (27.5% – 34.0%)

3.38

  ≥ 3 servings veg/ day

8.6% (6.8% – 10.9%)

12.4% (10.5% – 14.7%)

12.30***

  1. The association between each dichotomous independent variable and the dichotomous outcome of high vs. low recreational screen based sedentary behavior (column 2 & 3) was examined using chi–square test of independence
  2. *p ≤ .05 **p ≤ .01 ***p ≤ .001