Table 1.
Characteristics of Study Sample*
| Characteristic | Normal Weight BMI 18.5 to 24.9 | Overweight BMI 25.0 to 29.9 | Obese BMI 30.0 to 34.9 | Morbidly Obese BMI ≥35 |
|---|---|---|---|---|
| Number of respondents | 19,826 | 21,285 | 8,315 | 3,460 |
| Estimated population size | 23,592,877 | 26,544,848 | 10,269,497 | 4,156,110 |
| % | ||||
| Age groups, years | ||||
| 50–64 | 53.5 | 58.4 | 59.6 | 67.7 |
| 65–74 | 32.1 | 30.6 | 30.5 | 24.7 |
| ≥75 | 14.5 | 11.0 | 9.9 | 7.6 |
| Female | 61.8 | 44.7 | 50.6 | 62.0 |
| Ethnicity | ||||
| White, non-Hispanic | 83.3 | 80.2 | 78.0 | 75.4 |
| Black, non-Hispanic | 5.9 | 8.5 | 9.9 | 13.9 |
| Hispanic | 6.7 | 8.7 | 10.0 | 8.3 |
| Other | 4.2 | 2.7 | 2.2 | 2.4 |
| Not a high school graduate | 14.3 | 16.5 | 21.6 | 24.2 |
| Widowed, divorced, separated, or single | 33.5 | 30.3 | 31.9 | 39.9 |
| Annual household income, $ | ||||
| <15,000 | 11.0 | 11.2 | 15.0 | 17.9 |
| 15,000–50,000 | 44.2 | 45.7 | 47.2 | 47.6 |
| ≥50,000 | 25.5 | 26.1 | 22.3 | 18.6 |
| Missing | 19.3 | 17.1 | 15.5 | 16.0 |
| Region | ||||
| Northeast | 20.4 | 20.2 | 20.0 | 17.8 |
| South | 37.4 | 37.3 | 37.6 | 38.0 |
| Midwest | 20.1 | 22.0 | 22.7 | 26.1 |
| West | 22.2 | 20.5 | 19.8 | 18.1 |
| Uninsured for part (or whole) year | 8.3 | 8.4 | 10.1 | 12.7 |
| Fair or poor self-reported health status | 18.9 | 21.0 | 29.3 | 40.3 |
| Last checkup within past year | 79.3 | 80.2 | 82.7 | 83.5 |
| Current smoker | 20.2 | 15.9 | 12.2 | 12.6 |
*
All comparisons, P< .001.