title: Distribution of prenatal and postnatal risk factors for sudden infant death in Budapest.
abstract: OBJECTIVE
  To study the distribution of prenatal and postnatal risk factors for sudden infant death syndrome (SIDS).
  
  
  METHODS
  A questionnaire-based survey for SIDS risk factors; family interviews were performed among the parents of SIDS victims and symptom-free infants.
  
  
  METHODS
  The survey was conducted in paediatric primary health care units in Budapest, Hungary in the period 1996 to 1998.
  
  
  METHODS
  Eighteen SIDS cases and 74 symptom-free healthy infants aged 7-365 days were investigated.
  
  
  METHODS
  Occurrence of risk factors and impact of social environment were analysed using conditional logistic regression.
  
  
  RESULTS
  In this study, the classic risk factors of small birth weight, maternal smoking, bottle-feeding did not reflect differences between the investigated groups. The prone position did not demonstrate a difference between SIDS cases and controls (p = 0.86). Short intervals between pregnancies (OR = 4.8, CI = 1.2-19.9, p = 0.025) and social disadvantage (OR = 6.7, CI = 1.3-35.7, p = 0.015) indicated significant differences between SIDS cases and controls.
  
  
  CONCLUSIONS
  The outcome of our survey shows that infants from a lower social and economic environment may be at higher risk for SIDS.
authors.affiliation: Institute of Forensic Medicine, Semmelweis University, Budapest, Hungary. torok@igaz.sote.hu
authors.forename: K
authors.initials: K
authors.lastname: Töro
authors.forename: P
authors.initials: P
authors.lastname: Sótonyi
mesh_terms: D001721:Birth Intervals; D015897:Comorbidity; D005260:Female; D006801:Humans; D006814:Hungary / Q000453:epidemiology; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011159:Population Surveillance; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D016684:Prone Position; D012307:Risk Factors; D017678:Sex Distribution; D012907:Smoking / Q000453:epidemiology; D012959:Socioeconomic Factors; D013398:Sudden Infant Death / Q000453:epidemiology*; D016683:Supine Position