Cardiovascular Endurance, Body Mass Index, Physical Activity, Screen Time, and Carotenoid Intake of Children: NHANES National Youth Fitness Survey

Table 3

Odds ratio overweight/obesity versus under/normal weight by age and sex BMI.

Variable	OR (95% CI)
Heart rate reserve (HRR) bpm	—	<0.001
1st percentile < 32	3.52 (2.36, 5.24)	<0.001
2nd percentile 32–38.9	3.61 (1.84, 7.06)	0.001
3rd percentile 39–48	1.86 (0.77, 4.47)	0.153
4th percentile > 48 (reference)	1.00	—
Screen time (video, computer, television) hrs/day		0.024
<1 hour/day	0.51 (0.30, 0.88)	0.018
1 hour/day	0.38 (0.18, 0 .84)	0.020
2 hours/day	0.92 (0.47, 178)	0.783
≥3 hours/day (reference)	1.00	—
Physical activity (yes) past 7 days	0.77 (0.41, 1.48)	0.391

Adjusted for race/ethnicity, = 0.378, sex, = 0.064, and age, = 0.146.