Abstract
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 populationbased 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. Impact:Wehave presented additional evidence, suggesting that exposure to head CT scan may be associated with the occurrence of CABTs.
Original language | English |
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Journal | Cancer Epidemiology, Biomarkers & Prevention |
Volume | 26 |
Issue number | 1 |
Pages (from-to) | 110-115 |
ISSN | 1055-9965 |
DOIs | |
Publication status | Published - Jan 2017 |
Keywords
- Adolescent
- Brain Neoplasms/epidemiology
- Case-Control Studies
- Child
- Confidence Intervals
- Denmark/epidemiology
- Female
- Humans
- Internationality
- Magnetic Resonance Imaging/adverse effects
- Male
- Norway/epidemiology
- Odds Ratio
- Positron-Emission Tomography/adverse effects
- Postnatal Care/methods
- Pregnancy
- Prenatal Care/methods
- Prenatal Exposure Delayed Effects/epidemiology
- Radiation Dosage
- Radiation Exposure/adverse effects
- Sweden/epidemiology
- Switzerland/epidemiology
- Tomography, X-Ray Computed/adverse effects