1. Sleeping position and sudden infant death syndrome in Norway 1967-91
- Author
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Valborg Baste, Trond Markestad, Lorentz M. Irgens, Rolv Skjærven, Nina Øyen, and Patricia Schreuder
- Subjects
Pediatrics ,medicine.medical_specialty ,Birth weight ,Posture ,Sudden death ,Prone Position ,medicine ,Birth Weight ,Humans ,Retrospective Studies ,Pregnancy ,Norway ,business.industry ,Infant Care ,Smoking ,Infant, Newborn ,Sudden infant death syndrome ,medicine.disease ,Prone position ,Birth order ,Breast Feeding ,Pediatrics, Perinatology and Child Health ,Birth Order ,Sleep ,business ,Breast feeding ,Sudden Infant Death ,Research Article ,Maternal Age - Abstract
OBJECTIVE--To investigate, in a population based national study, the association between sleeping position of infants and the occurrence of sudden infant death syndrome (SIDS). DESIGN--A retrospective survey and registry based ecological study. A questionnaire based surveillance of sleeping position was obtained in a random sample (n = 34,799) and surveillance of SIDS was based on all infants born in Norway 1967-91, surviving the perinatal period. Variables studied from the questionnaire were usual sleeping position (placed), breast feeding at 3 months, and maternal smoking in pregnancy, and from the Medical Birth Registry maternal age, birth order, and birth weight. RESULTS--Proportion of infants sleeping prone increased from 1970 (7.4%) to 1989 (49.1%) and dropped in 1990 (26.8%) and 1991 (28.3%). Occurrence of SIDS increased from 1970 (1.1/1000) to 1989 (2.0) before dropping in 1990 and 1991 (1.1). IMPLICATION AND RELEVANCE OF RESULTS--A cause effect relationship between prone sleeping and SIDS as suggested in previous studies is supported by the present; and so far only, national study of infants' sleeping position.
- Published
- 1995