Table 1. Race/ethnic- and sex-specific demographics for n = 21,220 NHANES (2007–12) participants 2–80 years of age used to characterize the age-specific net probability of transitioning between normal weight, overweight, and obesity.
BMI, body mass index; N, unweighted number; IQR, interquartile range.
| Characteristic | African American | Caucasians | Mexican Americans | |||
|---|---|---|---|---|---|---|
| Females | Males | Females | Males | Females | Males | |
| N. | 3,026 | 3,043 | 4,998 | 5,226 | 2,417 | 2,510 |
| Median age (IQR) | 35 (17, 52) | 30 (16, 49) | 43 (23, 59) | 40 (21, 56) | 26 (12, 43) | 27 (13, 41) |
| Weight category | ||||||
| % Normal weight | 31.3 | 42.5 | 44.7 | 36.7 | 38.9 | 33.8 |
| % Overweight | 22.9 | 25.5 | 26.1 | 33.8 | 26.2 | 33.2 |
| % Obese | 45.7 | 31.9 | 29.2 | 29.5 | 34.9 | 33.0 |
| Median BMI percentile (IQR), children 2–19 | 74.0 (44.7, 93.8) | 71.0 (41.4, 92.8) | 65.0 (37.6, 87.6) | 64.8 (35.9, 88.2) | 73.3 (45.3, 92.3) | 77.2 (48.0, 94.7) |
| Median BMI (IQR), adults 20–80 | 31.0 (26.1, 36.6) | 27.9 (23.9, 32.7) | 26.9 (23.2, 32.0) | 27.8 (24.8, 31.4) | 29.2 (25.2, 33.9) | 28.5 (25.8, 31.9) |