Iatrogenic risks associated with CT scans received in childhood FRESH-PEF5108-en Florent DE VATHAIRE Iatrogenic risks associated with CT scans received in childhood TOMENF FRESH-PEF5108-en 5108 FRESH-PEF5108 Florent DE VATHAIRE INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM) Epidemiology France Portal (PEF) EUROPEAN COMMISSION RESEARCH ELECTRICITE DE FRANCE (EDF) INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM) null Florent;DE VATHAIRE CT scan medical exposure iatrogenic effects of radiation low doses of ionizing radiation cerebrovascular disease dosimetry childhood risk factors cohort cardiovascular disease Paediatrics Oncology Malignant neoplasms of ill-defined or unspecified primary sites Healthcare system determinants: Use of care Healthcare system determinants The main objective is to identify group of children who received CT scan and to study the long-term effects of the radiation in order to gain knowledge about all potential iatrogenic effects after exposure to CT scan in childhood by means of a cohort study. The study aims to: - identify a potential risk of radiation-induced cancer after CT scan in childhood, and quantify if any; - identify the factors affecting this potential risk, namely, the relationship with the dose received by the organ, the percentage of the irradiated body, age at CT scan, gender and possibly other carcinogenic factors. Secondary objectives are to identify potential risks of other radiation-induced diseases such as cerebrovascular and cardiovascular diseases and quantify them if they exist. null France Individuals General population Male Female Infant (28 days to 2 years) Child, Preschool (2 to 5 years) Child (6 to 12 years) Child under 15 years at the CT scan - CT scan received for reasons other than suspicion of tumor - CT scan in the period 1998-2008 - Children whose main residence is in France at the time of CT scan Clinical data Socio-demographic data Paraclinical data (non-biological) : Imaging Health event/morbidity Health event/mortality Other Through organizations (health services or institutions schools businesses etc.) [10000-20000[ individuals Self-administered questionnaire Interview with the participant (including clinical) Observational Study Observational Study Cohort study 11 000 Unknown To be defined This study is the French part of an international study (CHILD-MED-RAD: Cohort studies of children with substantial businesses diagnostic medical exposures). The International Agency for Research on Cancer (IARC) of the WHO (Lyon) has access to non-personal data. Access on specific project only