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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