Research Article

Concurrent Associations between Physical Activity, Screen Time, and Sleep Duration with Childhood Obesity

Table 4

Odds ratios for obesity using recommended guidelines for physical activity, screen time, and sleep.

Risk factorUnivariate modelFull modela
OR95% CINagelkerke OR95% CINagelkerke

Specific b
Boys failing to meet
 Physical activity2.7(1.6, 4.5)0.0653.1(1.7, 5.5)0.281
 Screen time1.5(0.9, 2.9)0.0111.4(0.7, 2.7)
 Sleep2.1(1.3, 3.4)0.0392.4(1.4, 4.3)
Girls failing to meet
 Physical activity1.9(1.3, 3.1)0.0342.5(1.5, 4.2)0.325
 Screen time1.3(0.8, 2.1)0.0051.1(0.7, 1.9)
 Sleep1.5(0.9, 2.4)0.0111.6(0.9, 2.8)
General
Boys and girls
 Meeting allRef. 0.066Ref.0.291
 Meeting 2 of 32.9(1.3, 6.7)2.6(1.1, 6.5)
 Meeting 1 of 34.6(2.0, 10.5)4.7(1.9, 11.3)
 Meeting none7.6(3.1, 18.1)8.2(3.2, 21.2)

aAdjusted specific models (boys ; girls ) controlling for age, height, leg length, ethnicity, and other risk factors (physical activity, sleep, and/or screen time). Adjusted general model ( ) controlling for age, height, leg length, ethnicity, and gender.
bReferent groups (OR = 1.0) are children meeting the specific recommendation.