Research Article

Association between Physical Activity and Age among Children with Overweight and Obesity: Evidence from the 2016-2017 National Survey of Children’s Health

Table 2

Associations between BMI, age, and physically active days (2016-2017 NSCH).

FactorsActive days out of 7 daysa
0 day<4 days
OR (95% CI)bOR (95% CI)b

BMI groups
percentile1 (reference)1 (reference)
percentile1.37 (1.1, 1.71)0.00581.46 (1.25, 1.7)<0.0001
 ≥95th percentile2.12 (1.71, 2.63)<0.00011.95 (1.62, 2.34)<0.0001
Age (years)
 101 (reference)1 (reference)
 111.17 (0.69, 1.97)0.56121.12 (0.88, 1.42)0.3483
 121.93 (1.24, 2.99)0.00331.23 (0.98, 1.52)0.069
 131.58 (1.03, 2.42)0.03541.33 (1.06, 1.68)0.0134
 142.6 (1.71, 3.96)<0.00011.18 (0.95, 1.48)0.1396
 153.23 (2.13, 4.87)<0.00011.45 (1.17, 1.79)0.0006
 163.06 (2.04, 4.6)<0.00011.64 (1.3, 2.07)<0.0001
 174.03 (2.71, 6)<0.00011.68 (1.36, 2.08)<0.0001

BMI: body mass index; NSCH: National Survey of Children’s Health. Values in bold are statistically significant (). aAn active day was defined as the child had participated in physical activity for at least 60 minutes in that day. bSurvey logistic regression results adjusting for sex, race, highest adult education, household poverty status, current health insurance status, and household tobacco use.