title: Risk factors associated with infantile spasms: a hospital-based case-control study in Taiwan.
abstract: We investigated the risk factors associated with infantile spasms (IS) by a hospital-based case-control study in Taiwan. Twenty-five patients with IS were recruited from one medical center (National Taiwan University Hospital) between 1990 and 1997. Based on a close-structured questionnaire, standardized interviews were carried out to obtain information on risk factors associated with IS. Two comparison groups are used, including a total of 106 subjects in the Disease Control group, and 139 subjects in the Normal Control group. Unconditional logistic regression is used to calculate odds ratios (OR) and 95% confidence interval (CI). Univariate analysis revealed gestational age, congenital cerebral anomalies, tuberous sclerosis (TS), asphyxia, febrile seizure, and developmental delay (before onset of spasm) were at increased risk of IS. After adjustment of multiple risk factors through unconditional logistic regression, significant risk factors for IS include congenital cerebral anomalies, TS, asphyxia, postterm, and developmental delay were highly associated with IS. The risk factors of IS may closely relate to underlying neurological abnormalities. Our results are consistent with the previous findings.
authors.affiliation: Department of Neurology and Pharmacology, National Taiwan University Hospital and National Taiwan University College of Medicine, 7 Chung San South Road, Taipei, Taiwan, ROC.
authors.forename: H H
authors.initials: HH
authors.lastname: Liou
authors.forename: P C
authors.initials: PC
authors.lastname: Oon
authors.forename: H C
authors.initials: HC
authors.lastname: Lin
authors.forename: P J
authors.initials: PJ
authors.lastname: Wang
authors.forename: T H
authors.initials: TH
authors.lastname: Chen
mesh_terms: D001927:Brain Diseases / Q000150:complications / Q000453:epidemiology; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D016001:Confidence Intervals; D005260:Female; D006785:Hospitals, University / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D016015:Logistic Models; D008297:Male; D015999:Multivariate Analysis; D016017:Odds Ratio; D012307:Risk Factors; D013036:Spasms, Infantile / Q000453:epidemiology* / Q000209:etiology; D013624:Taiwan / Q000453:epidemiology; D014402:Tuberous Sclerosis / Q000150:complications / Q000453:epidemiology