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Table 2 Odds ratios (OR) and 95% confidence intervals (CI) for engaging in sports activities at least three times a week

From: Objective and perceived availability of physical activity opportunities: differences in associations with physical activity behavior among urban adolescents

  Model 1: Demographics Model 2: Perceived environment
(N = 654)
Model 3: Objective environment
(N = 654)
  OR [95% CI] OR [95% CI] OR [95% CI]
Gender (referent = male) 0.30 [0.21-0.42] 0.27 [0.19-0.38] 0.28 [0.20-0.40]
Age 0.81 [0.71-0.94] 0.78 [0.68-0.91] 0.82 [0.70-0.95]
Ethnicity (referent = Western) 1.01 [0.72-1.42] 1.08 [0.76-1.53] 1.13 [0.76-1.67]
Educational level (referent = high) 1.06 [0.76-1.48] 1.08 [0.77-1.53] 1.04 [0.73-1.48]
Environment    
Parksa, b   1.13 [0.76-1.67] 1.06 [0.83-1.35]
Sports facilitiesa, b   1.73 [1.16-2.56] 0.98 [0.96-1.01]
Bicycle lanesa, c   1.08 [0.76-1.54] 1.15 [0.78-1.70]
Sidewalksa, c   1.08 [0.53-2.21] 0.99 [0.96-1.03]
  1. a For perceived environment, reference is "not available;" b for objective environment, the number counted within a radius of 1500 meters; c for objective environment, the percentage of neighborhood land area. Models 2 and 3 are independent of each other. Bold values are significant.