title: Comparative analysis of differences by gender in sudden infant death syndrome in Hungary and Japan.
abstract: We examined the sex ratio in sudden infant death syndrome (SIDS) cases in Hungary, in Tokyo and Japan between 1985 and 1996. From all the infant death cases in Hungary 395 (240 male, 155 female) were SIDS (odds ratio (OR)=1.179, with 95% confidence interval (CI)=0.961, 1.446), in Japan 4348 (2550 male, 1798 female) were SIDS (OR=1.145, with 95% CI=1.076, 1.218) and in Tokyo 307 (178 male, 129 female) were SIDS (OR=1.128, with 95% CI=0.894, 1.423). Male infants showed a significantly higher birth rate than females. The male infants are more vulnerable (p<0.005), however, higher mortality among male infants should not be considered a characteristic feature for SIDS.
authors.affiliation: Department of Forensic Medicine, Semmelweis University, Ulloi út 93, 1091, Budapest, Hungary.
authors.forename: K
authors.initials: K
authors.lastname: Töro
authors.forename: T
authors.initials: T
authors.lastname: Sawaguchi
authors.forename: A
authors.initials: A
authors.lastname: Sawaguchi
authors.forename: S
authors.initials: S
authors.lastname: Rózsa
authors.forename: P
authors.initials: P
authors.lastname: Sótonyi
mesh_terms: D005260:Female; D006801:Humans; D006814:Hungary / Q000453:epidemiology; D007231:Infant, Newborn; D007564:Japan / Q000453:epidemiology; D008297:Male; D012307:Risk Factors; D012744:Sex Ratio; D013398:Sudden Infant Death / Q000453:epidemiology*