We examined hospital and domestic infant care practices in Oxfordshire
and Northampton Health Districts to measure changes in prevalence of
sudden infant death syndrome (SIDS) risk factors, and to evaluate a sp
ecific educational intervention restricted to Oxfordshire. We sent a p
ostal questionnaire to 2781 parents of babies newly born in January 19
92, July 1992 and January 1993 and achieved an 88% response rate. Over
all, in hospital a relatively constant proportion (81%) slept on their
sides and few prone, whereas at home 52% (but increasing) slept supin
e and 8% prone part or all of the time. Significant differences existe
d by district, both in hospital and at home, with more sleeping supine
in Oxfordshire and more side-sleeping/propping in Northampton. First-
time parents were more receptive to safety guidelines about sleeping p
osition and several other risk factors also. We detected no modifying
effect of the Oxfordshire advice. Professional practice can influence
parental behaviour but general media coverage may produce the biggest
effects.