Table 5.
Pooled Population Attributable Fraction Estimates for Occupation and Idiopathic Pulmonary Fibrosis
| Exposure | Risk Estimates (N) | Pooled OR (95% CI) | Pooled PAF (%) (95% CI) |
|---|---|---|---|
| VGDF | 6 | 2.0 (1.2–3.2) | 26 (10–41) |
| Metal dusts | 9 | 2.0 (1.3–3.0) | 8 (4–13) |
| Wood dusts | 11 | 1.7 (1.3–2.2) | 4 (2–6) |
| Agricultural dusts | 5 | 1.6 (0.8–3.0) | 4 (0–12) |
| Silica | 8 | 1.7 (1.2–2.4) | 3 (2–5) |
Definition of abbreviations: CI = confidence interval; OR = odds ratio; PAF = population attributable fraction; VGDF = vapors, gas, dust, or fumes, which represent all the other exposure categories shown combined and, in selected studies, additional exposures as well.