Table 4: Prevalence, unadjusted (Model 1), and adjusted (Model 2) associations between physical activity (PA) correlates and PA and sedentary behaviors among US high school students.

PA correlates (independent variables)Correlate not present (ref)Correlate presentModel 1Model 2
% (95% CI)% (95% CI)ORAOR

Daily PA: ≥60 min/day, 7 days/week

Obese (BMI ≥ 95th percentile) 16.2 (14.5, 18.1) 10.6 (8.2, 13.6) 0.61*** 0.76*
Behavioral determinants of PA
 Daily PE classes 12.4 (10.9, 14.1) 19.7 (17.2, 22.5) 1.73*** 1.40**
 Sports team participation 7.9 (6.7, 9.3) 19.8 (18.0, 21.6) 2.88*** 1.74***
Environmental support for PA
 Sports equipment at home 9.1 (7.6, 10.9) 17.5 (16.1, 19.1) 2.11*** 1.24*
 Playgrounds/parks close to home 12.8 (10.8, 15.0) 16.1 (14.4, 18.0) 1.31** 1.10
 Neighborhood safe for PA 12.0 (10.1, 14.2) 16.2 (14.7, 17.9) 1.42*** 0.73**
Attitude toward PA scale (score: 5–25) 1.12*** 1.05**
Adult support for PA scale (score: 4–20) 1.14*** 1.09***

Vigorous PA: ≥20 min/day, ≥3 days/week

Obese (BMI ≥ 95th percentile) 70.4 (68.1, 72.6) 67.8 (64.8, 70.7) 0.89 1.23**
Behavioral determinants of PA
 Daily PE classes 62.3 (60.1, 64.4) 82.8 (79.2, 85.8) 2.91*** 2.80***
 Sports team participation 53.4 (49.5, 57.4) 80.0 (78.4, 81.5) 3.49*** 1.92***
Environmental support for PA
 Sports equipment at home 57.7 (54.4, 60.9) 74.7 (72.6, 76.7) 2.17*** 1.20*
 Playgrounds/parks close to home 64.4 (61.3, 67.3) 72.2 (69.9, 74.4) 1.44*** 1.12
 Neighborhood safe for PA 61.8 (59.0, 64.5) 72.6 (70.3, 74.8) 1.64*** 0.94
Attitude toward PA scale (score: 5–25) 1.13*** 1.08***
Adult support for PA scale (score: 4–20) 1.18*** 1.12***

Muscle-strengthening PA: ≥3 days/week

Obese (BMI ≥ 95th percentile) 52.0 (49.4, 54.6) 45.5 (42.1, 49.0) 0.77*** 0.96
Behavioral determinants of PA
 Daily PE classes 42.0 (39.9, 44.1) 65.9 (60.4, 70.9) 2.67*** 2.57***
 Sports team participation 36.0 (33.1, 38.9) 60.0 (57.5, 62.5) 2.68*** 1.53***
Environmental support for PA
 Sports equipment at home 40.7 (37.4, 44.1) 54.8 (52.2, 57.3) 1.76*** 1.05
 Playgrounds/parks close to home 46.3 (43.5, 49.1) 52.7 (50.0, 55.3) 1.29*** 0.98
 Neighborhood safe for PA 43.9 (40.7, 47.1) 53.1 (50.2, 56.0) 1.45*** 0.84
Attitude toward PA scale (score: 5–25) 1.13*** 1.08***
Adult support for PA scale (score: 4–20) 1.14*** 1.10***

Television: ≥3 hours/day

Obese (BMI ≥ 95th percentile) 26.8 (24.1, 29.7) 35.1 (31.4, 38.9) 1.47*** 1.29*
Behavioral determinants of PA
 Daily PE classes 28.6 (26.0, 31.3) 27.8 (23.9, 32.0) 0.96 1.08
 Sports team participation 34.7 (32.2, 37.3) 24.2 (21.3, 27.3) 0.60*** 0.73***
Environmental support for PA
 Sports equipment at home 36.3 (33.2, 39.5) 24.8 (22.2, 27.5) 0.58*** 0.79**
 Playgrounds/parks close to home 30.5 (27.7, 33.4) 27.0 (24.1, 30.2) 0.84* 0.93
 Neighborhood safe for PA 33.7 (30.9, 36.7) 26.2 (23.3, 29.3) 0.70*** 1.05
Attitude toward PA scale (score: 5–25) 0.95*** 0.96***
Adult support for PA scale (score: 4–20) 0.96*** 0.99

Computer/video games: ≥3 hours/day

Obese (BMI ≥ 95th percentile) 23.2 (21.5, 25.0) 25.2 (21.7, 29.0) 1.11 1.05
Behavioral determinants of PA
 Daily PE classes 23.8 (21.9, 25.9) 22.9 (20.6, 25.4) 0.95 0.96
 Sports team participation 30.0 (27.7, 32.5) 19.2 (17.5, 21.0) 0.55*** 0.67***
Environmental support for PA
 Sports equipment at home 29.8 (26.8, 33.0) 20.8 (19.0, 22.6) 0.62*** 0.82
 Playgrounds/parks close to home 25.4 (22.8, 28.1) 22.5 (20.9, 24.1) 0.85* 1.03
 Neighborhood safe for PA 26.9 (24.6, 29.4) 22.1 (20.3, 24.0) 0.77*** 1.03
Attitude toward PA scale (score: 5–25) 0.93*** 0.95***
Adult support for PA scale (score: 4–20) 0.93*** 0.96*

OR: odds ratio, unadjusted; AOR: adjusted odds ratio, adjusted for sex, race/ethnicity, grade, and PA correlates. BMI: body mass index = weight (kg)/height (m)2 (based on measured height and weight, using age- and sex-specific percentiles from growth charts developed by Centers for Disease Control and Prevention).
* value < 0.05; ** value < 0.01; *** value < 0.001.