Crude odds ratios (OR) for SIDS by maternal smoking career in Scandinavia 1992 to 1995, the Nordic epidemiological SIDS study
| Maternal smoking career | Cases | Controls | OR | 95% CI | p | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No | % | No | % | ||||||||||
| Never smoked | 67 | 30.7 | 430 | 56.3 | 1.0 | Reference | — | ||||||
| Early cessation3-150 | 9 | 4.1 | 68 | 8.9 | 0.7 | 0.3 to 1.4 | 0.30 | ||||||
| Late cessation3-151 | 10 | 4.6 | 54 | 7.1 | 1.1 | 0.5 to 2.4 | 0.73 | ||||||
| Partial cessation3-152 | 4 | 1.8 | 28 | 3.7 | 1.1 | 0.4 to 3.2 | 0.92 | ||||||
| Non-cessation | 128 | 58.7 | 184 | 24.1 | 4.5 | 3.1 to 6.5 | <0.001 | ||||||