title: An investigation of space and space-time clustering in a large sample of infants with neural tube defects born in Cardiff.
abstract: Altogether 406 infants with neural tube defects born in Cardiff between 1956-71 were investigated for evidence of space-time clustering and 100 similarly affected infants, together with matched controls born in Cardiff between 1964-66 were investigated for evidence of spatial clustering. No evidence of excessive prevalence in either dimension was observed.
mesh_terms: D000757:Anencephaly / Q000453:epidemiology*; D004739:England; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012189:Retrospective Studies; D016135:Spinal Dysraphism / Q000453:epidemiology*; D013223:Statistics as Topic; D013997:Time Factors