Maternal Health, Pregnancy and Offspring Factors, and Maternal Thyroid Cancer Risk: A Nordic Population-Based Registry Study
Open Access
- 20 September 2022
- journal article
- research article
- Published by Oxford University Press (OUP) in American Journal of Epidemiology
- Vol. 192 (1), 70-83
- https://doi.org/10.1093/aje/kwac163
Abstract
Thyroid cancer incidence is higher in women than men, especially during the reproductive years, for reasons that remain poorly understood. Using population-based registry data from four Nordic countries through 2015, we examined associations of perinatal characteristics with risk of maternal thyroid cancer. Cases were women diagnosed with thyroid cancer ≥2 years after last birth (n=7,425, 83% papillary). Cases were matched to controls (n=67,903) by mother’s birth year, country, and county of residence. Odds ratios (ORs) were estimated using conditional logistic regression models adjusted for parity. Older age at first pregnancy, postpartum hemorrhage (OR=1.18, 95% CI 1.08−1.29), and benign thyroid conditions (ORs ranging from 1.64 for hypothyroidism to 10.35 for thyroid neoplasms) were associated with increased thyroid cancer risk, as were higher offspring birth weight (per 1-kg increase, OR=1.17, 95% CI 1.12−1.22) and large-for-gestational-age (OR=1.26, 95% CI 1.11−1.43). Unmarried/non-cohabiting status (OR=0.91, 95% CI 0.84−0.98), maternal smoking (OR=0.75, 95% CI 0.67−0.84), and preterm birth (OR=0.90, 95% CI 0.83−0.98) were associated with reduced risk. Several factors (e.g., older age at first pregnancy, maternal smoking, goiter, benign neoplasms, postpartum hemorrhage, and hyperemesis gravidarum, neonatal jaundice) were associated with advanced thyroid cancer. These findings suggest that some perinatal exposures may influence maternal thyroid cancer risk.Keywords
Funding Information
- US National Cancer Institute
- NIH
This publication has 30 references indexed in Scilit:
- Insulin-like Growth Factor-I and Risk of Differentiated Thyroid Carcinoma in the European Prospective Investigation into Cancer and NutritionCancer Epidemiology, Biomarkers & Prevention, 2014
- Maternal and cord blood hormones in relation to birth sizeEuropean Journal of Epidemiology, 2014
- The Nordic medical birth registers – a potential goldmine for clinical researchActa Obstetricia et Gynecologica Scandinavica, 2013
- Thyroid Diseases and Adverse Pregnancy Outcomes in a Contemporary US CohortJournal of Clinical Endocrinology & Metabolism, 2013
- Cigarette smoking, alcohol intake, and thyroid cancer risk: a pooled analysis of five prospective studies in the United StatesCancer Causes & Control, 2012
- Hormonal Factors and the Risk of Papillary Thyroid Cancer in the California Teachers Study CohortCancer Epidemiology, Biomarkers & Prevention, 2011
- Estradiol-induced proliferation of papillary and follicular thyroid cancer cells is mediated by estrogen receptors α and βInternational Journal of Oncology, 2010
- The Danish investigation on iodine intake and thyroid disease, DanThyr: status and perspectivesActa Endocrinologica, 2006
- Smoke Exposure Is Associated with a Lower Prevalence of Serum Thyroid Autoantibodies and Thyrotropin Concentration Elevation and a Higher Prevalence of Mild Thyrotropin Concentration Suppression in the Third National Health and Nutrition Examination Survey (NHANES III)Journal of Clinical Endocrinology & Metabolism, 2004
- The role of chorionic gonadotropin in transient hyperthyroidism of hyperemesis gravidarum.Journal of Clinical Endocrinology & Metabolism, 1992