Association between Physical Activity and Age among Children with Overweight and Obesity: Evidence from the 2016-2017 National Survey of Children’s Health
Table 3
Subgroup analysis for associations between age and physically active days by BMI categories.
BMI subgroups
Age (years)
Active days out of 7 daysa
0 day
<4 days
OR (95% CI)b
OR (95% CI)b
percentile
10
1 (reference)
1 (reference)
11
0.9 (0.49, 1.67)
0.74
1.01 (0.76, 1.34)
0.9274
12
1.45 (0.83, 2.55)
0.1914
1.2 (0.92, 1.56)
0.1754
13
1.47 (0.88, 2.46)
0.1433
1.23 (0.93, 1.61)
0.1444
14
2.26 (1.39, 3.67)
0.001
1.12 (0.86, 1.44)
0.4013
15
3.08 (1.9, 5)
<0.0001
1.39 (1.09, 1.77)
0.0083
16
2.44 (1.55, 3.85)
0.0001
1.65 (1.28, 2.12)
0.0001
17
3.55 (2.23, 5.65)
<0.0001
1.65 (1.29, 2.1)
0.0001
percentile
10
1 (reference)
1 (reference)
11
1.8 (0.73, 4.43)
0.1991
1.9 (1.14, 3.17)
0.0135
12
3.49 (1.56, 7.83)
0.0024
1.85 (1.12, 3.03)
0.0154
13
2.31 (1.1, 4.84)
0.0265
2.17 (1.25, 3.76)
0.0058
14
4.76 (2.08, 10.89)
0.0002
1.69 (0.92, 3.1)
0.091
15
4.87 (2.38, 10)
<0.0001
2.03 (1.23, 3.35)
0.0055
16
5.68 (2.57, 12.55)
<0.0001
1.86 (1.06, 3.28)
0.0313
17
7.48 (3.6, 15.52)
<0.0001
2.48 (1.47, 4.17)
0.0007
≥95th percentile
10
1 (reference)
1 (reference)
11
1.39 (0.46, 4.21)
0.5642
0.97 (0.51, 1.81)
0.913
12
2.25 (0.9, 5.64)
0.083
0.88 (0.5, 1.54)
0.6536
13
1.51 (0.59, 3.86)
0.3893
1.16 (0.65, 2.08)
0.6195
14
2.36 (0.92, 6.09)
0.0753
1.11 (0.66, 1.86)
0.695
15
2.58 (1, 6.7)
0.0508
1.25 (0.69, 2.26)
0.4634
16
3.42 (1.35, 8.67)
0.0096
1.4 (0.7, 2.83)
0.345
17
3.84 (1.59, 9.26)
0.0027
1.24 (0.71, 2.17)
0.4532
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.
