Cases (n=296) | Controls (n=287) | |||||
---|---|---|---|---|---|---|
Year of birth | Used disposable nappies (%) | Did not use disposable nappies | Used disposable nappies (%) | Did not use disposable nappies | Odds ratio | 95% confidence interval |
1946–50 | 0 (0.0) | 41 | 0 (0.0) | 40 | — | — |
1951–55 | 1 (1.4) | 73 | 0 (0.0) | 73 | — | — |
1956–60 | 1 (1.2) | 81 | 0 (0.0) | 85 | — | — |
1961–65 | 3 (4.3) | 67 | 5 (7.8) | 59 | 0.5 | 0.1–2.3 |
1966–70 | 5 (17.2) | 24 | 6 (24.0) | 19 | 0.7 | 0.2–2.5 |
1946–70 | 10 (3.4) | 286 | 11 (3.8) | 276 | 0.8 | 0.3–2.0 |