Crude analysis | Adjusted analysisa | ||||||
---|---|---|---|---|---|---|---|
P (%) | PR | 95% CI | (p value) | PR | 95% CI | (p value) | |
Ethnicity | < 0.001 | < 0.001 | |||||
White | 62.7 | 1 | 1 | ||||
Other | 18.3 | 0.49 | 0.41–0.58 | 0.77 | 0.65–0.91 | ||
Black | 17.8 | 0.48 | 0.39–0.58 | 0.73 | 0.61–0.86 | ||
Education (years) | < 0.001 | < 0.001 | |||||
≤ 4 years | 6.9 | 1 | 1 | ||||
5–8 | 11.7 | 1.70 | 1.10–2.64 | 1.50 | 0.97–2.33 | ||
9–11 | 26.0 | 3.80 | 2.50–5.73 | 2.91 | 1.91–4.43 | ||
≥ 12 | 59.6 | 8.70 | 5.79–13.0 | 5.22 | 3.44–7.93 | ||
Family Income b | < 0.001 | < 0.001 | |||||
≤ 1 | 10.8 | 1 | 1 | ||||
1.1–3.0 | 20.9 | 1.94 | 1.47–2.56 | 1.37 | 1.04–1.80 | ||
3.1–6.0 | 40.2 | 3.73 | 2.84–4.90 | 1.86 | 1.41–2.44 | ||
6.1–10.0 | 67.2 | 6.23 | 4.74–8.20 | 2.37 | 1.78–3.15 | ||
> 10.0 | 70.2 | 6.51 | 4.95–8.55 | 2.35 | 1.76–3.10 |