Variables associated with risk factor group, multivariate model
| Variable | Higher risk for SIDS (%) | Lower risk for SIDS (%) | OR (95% CI) | p Value |
| Breast feeding | 6/48 (12.5) | 131/352 (37.2) | 3.32 (1.33 to 8.31) | 0.010 |
| Mention smoking as a risk for SIDS | 19/48 (39.6) | 89/352 (25.3) | 0.37 (0.18 to 0.76) | 0.007 |
| Women should quit smoking during pregnancy* | 31/48 (64.6) | 297/352 (84.6) | 1.85 (1.33 to 2.59) | 0.000 |
| No other information sources used | 6/48 (12.5) | 12/352 (3.4) | 3.22 (1.02 to 10.16) | 0.046 |
| Cite >1 correct strategy for risk reduction† | 35/48 (72.9) | 298/352 (84.7) | 2.08 (0.94 to 4.61) | 0.072 |
*Agreed that pregnant smokers should quit.
†Cited two or more correct strategies for SIDS risk reduction.
SIDS, sudden infant death syndrome.