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Age-standardized incidence ratio (SIR) and 95% confidence intervals (CI) of cancer of digestive systems among external airborne agent exposure group.
| Cancer type (ICD-10) | Cases | SIR | 95% CI |
|---|---|---|---|
| All (C00-26) | 192,695 | 1.30 | (1.19–1.38) |
| Oral (C00-14) | 7,406 | 3.96 | (3.02–4.78) |
| Gastrointestinal and hepatobiliary tract (C15-26) | 185,854 | 1.22 | (1.12–1.30) |
| Gastrointestinal tract (C15-21) | 130,035 | 1.28 | (1.15–1.37) |
| Hepatobiliary tract (C22-26) | 58,295 | 1.15 | (0.97–1.29) |
