Table 2 Standardised incidence ratios (SIRs) and 95% confidence interval (CI) for non‐cardia gastric cancer among subjects hospitalised for infectious disease* by selected cohort characteristics.
| Characteristic | Observed No cancer cases | SIR (95% CI) |
|---|---|---|
| All† | 645 | 1.08 (1.00–1.17) |
| Sex | ||
| Male | 310 | 0.99 (0.89–1.11) |
| Female | 335 | 1.18 (1.06–1.31) |
| Age at index hospitalisation (y) | ||
| <50 | 112 | 1.25 (1.03–1.50) |
| 50–59 | 91 | 1.11 (0.89–1.36) |
| 60–69 | 179 | 1.13 (0.97–1.31) |
| 70–79 | 191 | 0.99 (0.86–1.14) |
| 80+ | 72 | 0.98 (0.77–1.23) |
| Trend | 0.04 | |
| Follow up (y) | ||
| 1–4 | 266 | 1.07 (0.95–1.21) |
| 5–9 | 153 | 0.94 (0.79–1.10) |
| 10–14 | 109 | 1.23 (1.01–1.49) |
| 15–19 | 63 | 1.24 (0.96–1.59) |
| 20+ | 54 | 1.18 (0.89–1.54) |
*Patients hospitalised with pyelonephritis, chronic cystitis, endocarditis, chronic rheumatic heart disease, pelvic infection, rheumatic fever, tonsillitis, venereal disease, osteomyelitis, or meningitis between 1970 and 2003.
†All person time and all 150 non‐cardia gastric cancer cases that had occurred during the first year of follow up were excluded.