Table 5. Adjusted odds ratios and population attributable risk proportions (PAR%) of OL and OSF associated with independent factors, Taiwan.
|
Oral leukoplakia |
Oral submucous fibrosis |
|||
|---|---|---|---|---|
| Factor/category | ORa (95% CI) | PAR% | ORa (95% CI) | PAR% |
| Cumulative betel quid chewing in pack-years | ||||
| No | 1.0 | 73.2 | 1.0 | 85.4 |
| 1–10 | 10.2 (4.6–23.1) | 22.4 (8.0–62.3) | ||
| 11–20 | 24.5 (8.8–68.1) | 40.4 (12.9–126.6) | ||
| ⩾21 | 28.8 (11.9–69.5) | 44.0 (12.8–151.8) | ||
| Cumulative cigarette smoking in pack-years | ||||
| No | 1.0 | 56.4 | 1.0 | |
| 1–10 | 3.3 (1.5–7.2) | 1.8 (0.7–5.1) | — | |
| 11–20 | 3.0 (1.3–7.2) | 2.0 (0.6–6.4) | ||
| ⩾21 | 2.8 (1.3–6.0) | 1.6 (0.5–5.0) | ||
| Alcohol drinking | ||||
| No | 1.0 | — | 1.0 | — |
| Monthly | 1.0 (0.4–2.7) | 0.8 (0.3–2.5) | ||
| Weekly | 1.1 (0.5–2.2) | 1.3 (0.5–3.1) | ||
| Daily | 0.8 (0.4–1.7) | 0.9 (0.3–2.5) | ||
| Years of education | ||||
| <7 | 1.0 | 1.0 | ||
| 7–9 | 1.6 (0.8–3.2) | — | 0.7 (0.3–1.8) | — |
| >9 | 1.0 (0.5–2.1) | 0.6 (0.2–1.7) | ||
| Occupation | ||||
| Blue collar | 1.0 | — | 1.0 | — |
| Farmer | 0.6 (0.3–1.2) | 0.5 (0.2–1.4) | ||
| White collar | 1.1 (0.6–2.2) | 1.0 (0.4–2.1) | ||
| Summary population attributable risk proportion (%) | 84.4 | 85.4 | ||
a
Odds ratios were derived from the multivariate logistic regression model adjusted for the table's covariates.