Table 1.
Characteristics of study population, 2001–2016
| Characteristic | na | Percent (95% CI)b | |
|---|---|---|---|
| Age (y) | 39,758 | ||
| 20–30 | 21.2 | (20.2–22.2) | |
| 31–50 | 37.5 | (36.5–38.6) | |
| 51–70 | 30.4 | (29.4–31.3) | |
| 70+ | 10.9 | (10.4–11.5) | |
| Sex | 39,758 | ||
| Women | 51.9 | (51.3–52.4) | |
| Men | 48.1 | (47.6–48.7) | |
| Race/ethnicity | 33,341 | ||
| Non-Hispanic white | 77.9 | (75.7–80.0) | |
| Non-Hispanic black | 12.7 | (11.3–14.3) | |
| Mexican-American | 9.3 | (8.0–10.8) | |
| Education | 39,719 | ||
| Less than high school | 17.2 | (16.2–18.2) | |
| High school or equivalent | 23.4 | (22.5–24.3) | |
| Some college | 31.6 | (30.7–32.4) | |
| College graduate | 27.8 | (26.3–29.4) | |
| Income-to-poverty ratio | 36,784 | ||
| < 0.75 | 9.1 | (8.3–9.8) | |
| 0.75–1.30 | 13.0 | (12.2–13.8) | |
| 1.31–1.99 | 13.3 | (12.6–13.9) | |
| 2.00–3.99 | 28.8 | (27.7–29.8) | |
| 4.00+ | 35.9 | (34.3–37.6) | |
aSample sizes are unweighted
bPercentages within each column adjusted for survey weight