Table 4 Lung cancer relative risks in relation to talc exposure in other industries.
| n | Lung cancer | |||
|---|---|---|---|---|
| Type of relative risk | RR (exposed cases) | 95% CI | ||
| Ceramic industry, US12,13 | 2055 | SMR ever exposed to non‐fibrous talc and high silica (US rates)—unadjusted | 2.54 (21) | 1.57–3.88 |
| SMR exposed to 15+ years non‐fibrous talc and high silica (US rates)—unadjusted | 3.64 (8) | 1.57–7.17 | ||
| Rubber industry, China14 | 1624 | Mantel‐Haenszel RR (rubber curing adjusted on smoking) | Males 3.3 (7) | 1.3–8.2 |
| Females 4.6 (2) | 0.8–28.0 | |||
| Rubber industry, Germany17,18 | 8933 | Internal RR (high talc exposure unadjusted) | 2.4 (13) | 1.2–4.9 |
| Internal RR (high talc or asbestos exposure adjusted on smoking and other exposures) | 2.0 (13) | 0.9–4.1 | ||
| Glass fibre production, US16 | 144 cases, 280 controls | OR (high talc exposure adjusted on smoking and other exposures) | 1.36 (10) | 0.41–4.52 |
| Printing industry, Russia19 | 1795 | SMR (in press operators and in bookbinders exposed to paper dust potentially containing talc) | 1.0 (6) | 0.35–2.18 |
| Pulp and paper mill, Norway20 | SIR (all workers with more than three years employment, at least 44% of which have been exposed to paper dust potentially containing talc) | 1.4 (14) | 0.70–2.16 | |
OR, odds ratio; RR, relative risk; SIR, standardised incidence ratio; SMR, standardised mortality ratio.