Table 2.
Children (6–11 years) |
Adolescents (12–17 years) |
|||||||
---|---|---|---|---|---|---|---|---|
Boys (n = 442) |
Girls (n = 473) |
Boys (n = 646) |
Girls (n = 656) |
|||||
Mean | SE | Mean | SE | Mean | SE | Mean | SE | |
Age (years) |
8.62 |
0.11 |
8.53 |
0.08 |
14.40 |
0.11 |
14.52 |
0.11 |
Ethnicity (%) |
|
|
|
|
|
|
|
|
Non-hispanic white |
57.70 |
4.94 |
55.22 |
4.11 |
62.95 |
4.79 |
60.56 |
3.30 |
Non-hispanic black |
14.07 |
2.89 |
14.62 |
2.20 |
14.91 |
3.18 |
15.07 |
2.68 |
Mexican American |
14.68 |
1.72 |
14.29 |
1.64 |
12.23 |
1.41 |
11.61 |
1.58 |
Other |
13.55 |
2.92 |
15.88 |
3.11 |
9.91 |
1.60 |
12.75 |
2.46 |
MVPA minutes/day (FR 3 METs) |
191.79 |
5.76 |
169.99 |
3.84 |
75.05 |
3.06 |
47.80 |
2.22 |
MVPA minutes/day (FR 4 METs) |
94.14 |
3.11 |
76.53 |
2.24 |
35.37 |
1.60 |
18.94 |
1.11 |
MVPA minutes/day (EV) |
58.28 |
1.89 |
44.76 |
1.68 |
43.50 |
1.40 |
25.21 |
1.13 |
% ≥60 min of MVPA (FR 3 METs) |
95.03 |
2.31 |
98.03 |
0.87 |
57.31 |
3.40 |
27.39 |
2.86 |
% ≥60 min of MVPA (FR 4 METs) |
74.75 |
2.66 |
61.46 |
3.67 |
14.31 |
1.68 |
2.89 |
0.84 |
% ≥60 min of MVPA (EV) |
45.85 |
2.39 |
22.01 |
2.90 |
22.05 |
2.34 |
6.66 |
1.84 |
Steps/day (uncensored) |
13,088 |
271 |
12,313 |
274 |
11,489 |
235 |
9,449 |
206 |
Steps/day (censored) |
10,530 |
242 |
9,544 |
246 |
8,922 |
221 |
6,885 |
184 |
Activity counts/min | 649.47 | 15.67 | 589.01 | 10.85 | 476.15 | 11.99 | 353.18 | 10.31 |
1Values and standard errors were estimated after accounting for NHANES complex survey design and sample weights. Sample sizes refer to unweighted values. All values were derived from participants with 1 to 7 valid days of accelerometer data. Of the 2,217, 197 youth had only 1 valid day and 1,643 youth had 4 or more valid days.