Prenatal and postnatal medical conditions and the risk of brain tumors in children and adolescents: An international multicenter case-control study
Tettamanti, Giorgio; Shu, Xiaochen; Fahmideh, Maral Adel; Schüz, Joachim; Röösli, Martin; Tynes, Tore; Grotzer, Michael; Johansen, Christoffer; Klæboe, Lars Hind Bakken; Kuehni, Claudia; Lannering, Birgitta; Schmidt, Lisbeth Samsø; Vienneau, Danielle; Feychting, Maria
Peer reviewed, Journal article
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Date
2017Metadata
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Cancer Epidemiology, Biomarkers and Prevention. 2017, 26 (1), 110-115. 10.1158/1055-9965.EPI-16-0451Abstract
Background: Previous studies have evaluated the effect of medical diagnostic radiation on brain tumors. Recent cohort studies have reported an increased risk associated with exposure to head CT scans. Methods: Information regarding medical conditions, including prenatal and postnatal exposure to medical diagnostic radiation, was obtained from CEFALO, a multicenter case–control study performed in Denmark, Norway, Sweden, and Switzerland through face-to-face interview. Eligible cases of childhood and adolescent brain tumors (CABT) were ages 7 to 19 years, diagnosed between January 1, 2004 and August 31, 2008, and living in the participating countries (n = 352). The cases were matched by age, sex, and region to 646 population-based controls. Results: Prenatal exposure to medical diagnostic radiation and postnatal exposure to X-rays were not associated with CABTs. A higher risk estimate of CABTs, although not statistically significant, was found for exposure to head CT scan (OR, 1.86; 95% confidence interval, 0.82–4.22). The associations with head injury, febrile seizure, fever in the first 12 weeks, and general anesthesia were close to unity. Conclusions: Prenatal or postnatal medical conditions, including medical diagnostic radiation, were not associated with CABTs. On the basis of small numbers of exposed children, we observed a nonsignificant increased risk for CT scans of the head. Prenatal and postnatal medical conditions and the risk of brain tumors in children and adolescents: An international multicenter case-control study