Table 1 Characteristics of included participants from NHANES 2013–2016 (N = 1,024)
Characteristics | N (%)/Median (25th, 75th) |
|---|---|
Age (years) | 15 (13, 17) |
Sex | Â |
 Male | 520 (50.8) |
 Female | 504 (49.2) |
Race | Â |
 Mexican American | 234 (22.9) |
 Other Hispanic | 101 (9.9) |
 Non-Hispanic White | 272 (26.5) |
 Non-Hispanic Black | 262 (25.6) |
 Other race | 155 (15.1) |
Family PIR | Â |
 < 1 | 318 (31.1) |
 ≥ 1 | 706 (68.9) |
Second hand smoking | Â |
 Yes | 491 (47.9) |
 No | 533 (52.1) |
Survey cycle | Â |
 2013–2014 | 543 (53.0) |
 2015–2016 | 481 (47.0) |
Physical activity (MET min/week) | Â |
 Inactive (< 400) | 214 (20.8) |
 Moderately active (400–2880) | 397 (38.5) |
 Active (≥ 2880) | 420 (40.7) |
Body mass index (kg/m2) | Â |
 Under weight | 23 (2.2) |
 Normal weight | 600 (58.6) |
 Over weight | 169 (16.5) |
 Obesity | 232 (22.7) |