Researchers consulted data from the National health Insurance programme to study demographic and medical information on disease diagnoses, procedures, and drug prescriptions, and the enrolment profiles of all patients.
Patients were excluded if they were under 25 years at the time of the cancer diagnosis, had less than three years of follow-up before cancer diagnosis, or had a history of a cancer before the year 2000.
Results showed patients who developed thyroid cancer and leukaemia had significantly higher likelihood of having received CT scans.
In studies that combined patients across age groups, exposure to medical CT scans was not associated with increased risk for non-Hodgkin lymphoma.
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