Table 8.

Adjusted Odds Ratio (95% Confidence Intervals) for Modifiable Risk Factors

Initial*2 months
OR (95% CI)OR (95% CI)
Sleep position
 Supine1.001.00
 Side2.00 (0.65, 6.12)6.57 (1.71, 25.23)
 Prone6.25 (0.95, 41.14)19.65 (3.50, 110.35)
Any breastfeeding
 Yes1.001.00
 No1.31 (0.68, 2.53)1.07 (0.47, 2.43)
Bed sharing/maternal smoking
 No/No1.001.00
 No/Yes1.68 (0.84, 3.34)1.43 (0.58, 3.51)
 Yes/No0.55 (0.17, 1.78)1.03 (0.21, 5.06)
 Yes/Yes5.01 (2.01, 12.46)5.02 (1.05, 24.05)
  • Controlling for: maternal age, marital status, age mother left school, previous number of pregnancies, infant's sex, ethnicity of infant, birthweight, sleep position, breastfeeding and bed sharing/maternal smoking combinations.

  • * Initial cases: n = 79; controls: n = 679.

  • Two months cases: n = 38; controls: n = 588.