[Sudden infant death syndrome in Austria. 2: Prevalence pattern and socio-demographic characteristics].
This paper investigates SIDS cases in the first year of life between 1980 and 1987 in Austria regarding age at death, seasonal distribution and influence of birth weight, APGAR-Score and socio-demographic risk factors. SIDS mortality is highest between the 10th and 12th week of life. The median life span of SIDS cases is 103 days. The seasonal distribution indicates an influence of acute respiratory diseases. 37% of all cases happened from October to December. Although--because of competing risks--SIDS has primary importance for infants with a birth-weight of more than 2500 g, low birth-weight is an important risk factor. Age of mother, illegitimate birth and low educational level of the mother are important socio-demographic risk factors.