Risk of Infertility in Reproductive-Age Patients With Thyroid Cancer Receiving or Not Receiving 131I Treatment: A Nationwide Population-Based Cohort Study.
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Abstract
Background: Fertility is the crucial concern for many survivors of cancer diagnosed as children, adolescents, and young adults. The objective of this study was to determine the risk of infertility in reproductive-age patients with thyroid cancer receiving or not receiving radioiodine treatment in Taiwan.
Methods: This nationwide population-based cohort study was conducted using data obtained from the Taiwan National Health Insurance Database from 2009 to 2019. A total of 20,259 thyroid cancer patients aged from 15 to 50 years (8037 did not receive 131I treatment, and 12,222 received 131I treatment) and 20,259 controls were enrolled. A Cox proportional hazards model was applied to estimate the risk of infertility in thyroid cancer patients receiving or not receiving 131I treatment in terms of hazard ratios and 95% confidence intervals.
Results: The incidence rates of infertility in thyroid cancer receiving 131I therapy, those not receiving 131I therapy, and controls were 5.55, 5.07, and 3.61 per 1000 person-years, respectively. Compared with thyroid cancer patients treated with a cumulative 131I dose of 4.44 GBq or less, the risk of infertility was not significantly increased in those treated with a cumulative 131I dose of more than 4.44 GBq (adjusted hazard ratio, 1.13; 95% confidence interval, 0.95-1.36).
Conclusions: The greatest increased risk of infertility in reproductive-age patients with thyroid cancer is associated with the fact that the patient has thyroid cancer regardless of 131I administration. 131I treatment or cumulative dose of 131I greater than 4.44 GBq did not further increase the risk of infertility.
期刊介绍：
Clinical Nuclear Medicine is a comprehensive and current resource for professionals in the field of nuclear medicine. It caters to both generalists and specialists, offering valuable insights on how to effectively apply nuclear medicine techniques in various clinical scenarios. With a focus on timely dissemination of information, this journal covers the latest developments that impact all aspects of the specialty.
Geared towards practitioners, Clinical Nuclear Medicine is the ultimate practice-oriented publication in the field of nuclear imaging. Its informative articles are complemented by numerous illustrations that demonstrate how physicians can seamlessly integrate the knowledge gained into their everyday practice.
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