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 factor
Univariate model
Full modela
OR
95% CI
Nagelkerke
OR
95% CI
Nagelkerke
Specific
b
Boys failing to meet
Physical activity
2.7
(1.6, 4.5)
0.065
3.1
(1.7, 5.5)
0.281
Screen time
1.5
(0.9, 2.9)
0.011
1.4
(0.7, 2.7)
—
Sleep
2.1
(1.3, 3.4)
0.039
2.4
(1.4, 4.3)
—
Girls failing to meet
Physical activity
1.9
(1.3, 3.1)
0.034
2.5
(1.5, 4.2)
0.325
Screen time
1.3
(0.8, 2.1)
0.005
1.1
(0.7, 1.9)
—
Sleep
1.5
(0.9, 2.4)
0.011
1.6
(0.9, 2.8)
—
General
Boys and girls
Meeting all
Ref.
—
0.066
Ref.
—
0.291
Meeting 2 of 3
2.9
(1.3, 6.7)
—
2.6
(1.1, 6.5)
—
Meeting 1 of 3
4.6
(2.0, 10.5)
—
4.7
(1.9, 11.3)
—
Meeting none
7.6
(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.