Does Hyperthyroidism Increase Cancer Risk?
Does Hyperthyroidism Increase Cancer Risk? Does hyperthyroidism increase cancer risk? Patients with hyperthyroidism experienced a 23% increased risk of breast cancer (IRR = 1.23, 95% CI = 1.12–1.36). In the KARMA cohort, there were 36 cases of breast cancer after hyperthyroidism diagnosis during a follow-up time of 7930 person years, corresponding to an incidence rate