From: Association between sudden infant death syndrome and diphtheria-tetanus-pertussis immunisation: an ecological study
Estimate [per 10% increase]
IRR (95% CI)
DTP immunisation coverage
−0.08
0.92 (0.87, 0.97)
Infant sleep position (supine)
−0.12
0.89 (0.86, 0.91)