title: Differences in factors influencing the familial aggregation of febrile convulsion in population and hospital patients.
abstract: Socio-demographic data, initial clinical manifestations, outcome and family aggregation of febrile convulsion (FC) were compared between 85 population and 364 multicenter patients. More patients presented with clustering of seizures and had recurrence of FC in multicenter group than in population group. Multicenter patients had more fever episodes per year, more day-card attendance and a higher incidence of FC history in their parents. The odds ratio of FC in the siblings was 6:1 in population group and 12:1 in multicenter group. Lower socioeconomic status influenced the presence of FC in the sibling of population group. Instead, FC histories in the father and paternal cousins of probands had influence on the presence of FC in the siblings of multicenter group. We conclude that the population FC sample rather than the hospital sample is the more representative. And there are differences not only in the clinical manifestations but also in the effect of environmental and genetic influences on the family aggregation in population and hospital patients.
authors.affiliation: Department of Neurology, National Cheng Kung University Medical Center, 802 Army General Hospital, Tainan, Taiwan.
authors.forename: J J
authors.initials: JJ
authors.lastname: Tsai
authors.forename: M C
authors.initials: MC
authors.lastname: Huang
authors.forename: F W
authors.initials: FW
authors.lastname: Lung
authors.forename: C C
authors.initials: CC
authors.lastname: Huang
authors.forename: Y C
authors.initials: YC
authors.lastname: Change
mesh_terms: D000293:Adolescent; D000328:Adult; D016009:Chi-Square Distribution; D002648:Child; D005260:Female; D006801:Humans; D007297:Inpatients / Q000706:statistics & numerical data*; D008297:Male; D010045:Outpatients / Q000706:statistics & numerical data*; D012044:Regression Analysis; D012307:Risk Factors; D003294:Seizures, Febrile / Q000209:etiology / Q000235:genetics*; D012959:Socioeconomic Factors; D013624:Taiwan