Demographic Characteristics of Study Sample Obtained from NHANES III Survey*
| Body Mass Index | ||||
|---|---|---|---|---|
| 18.5–24.9 | 25–29.9 | ≥30 | Total | |
| Age (years) | ||||
| 21–44 | 65.9 | 53.8 | 53.2 | 59.0 |
| 45–64 | 21.4 | 29.7 | 33.0 | 26.7 |
| ≥65 | 12.7 | 16.4 | 13.8 | 14.2 |
| Race | ||||
| Non-Hispanic white | 83.6 | 79.4 | 75.4 | 80.3 |
| Non-Hispanic black | 8.7 | 9.9 | 13.7 | 10.2 |
| Hispanic | 7.7 | 10.7 | 10.9 | 9.4 |
| Sex | ||||
| Female | 56.4 | 40.5 | 58.2 | 51.4 |
| Male | 43.6 | 59.5 | 41.8 | 48.6 |
| Education level | ||||
| Less than high school | 19.6 | 23.4 | 25.6 | 22.2 |
| High school | 33.1 | 34.5 | 38.7 | 34.8 |
| Some college | 35.9 | 32.1 | 29.4 | 33.2 |
| College or greater | 11.5 | 9.9 | 6.3 | 9.8 |
| Marital status | ||||
| Married or partner | 63.9 | 71.7 | 70.0 | 67.9 |
| Living alone | 36.1 | 28.3 | 30.1 | 32.1 |
| Exercise frequency | ||||
| None | 11.5 | 12.4 | 16.2 | 12.8 |
| 1–12 times per month | 30.0 | 31.4 | 36.5 | 31.9 |
| >12 times per month | 46.6 | 34.6 | 18.8 | 55.3 |
| Smoking status | ||||
| Current nonsmoker | 65.9 | 71.7 | 75.7 | 70.0 |
| Current smoker | 34.1 | 28.3 | 24.3 | 30.0 |
| Fruit/vegetables | ||||
| <5 servings/day | 61.7 | 58.6 | 64.5 | 61.3 |
| ≥5 servings/day | 38.3 | 41.4 | 35.5 | 38.7 |
| Alcohol consumption | ||||
| None | 36.8 | 42.3 | 53.4 | 42.3 |
| Moderate | 52.2 | 48.9 | 39.3 | 48.2 |
| Exceeds moderate | 11.0 | 8.8 | 7.3 | 11.0 |
| Healthy habits (%) | ||||
| None | 2.8 | 1.6 | 1.5 | 2.0 |
| 1 | 13.8 | 11.7 | 12.0 | 12.7 |
| 2 | 31.0 | 30.8 | 36.7 | 32.2 |
| 3 | 33.5 | 36.5 | 33.6 | 34.6 |
| 4 | 18.9 | 19.4 | 16.2 | 18.5 |
↵* Sample size = 11,761 unweighted (133,700,723 weighted).