1. Alexander, EK, Pearce, EN, Brent, GA, et al. 2017 guidelines of the American Thyroid Association for the diagnosis and management of thyroid disease during pregnancy and the postpartum. Thyroid 2017; 27: 315–389.
Google Scholar | Crossref | Medline2. Chinese Society of Endocrinology . A guideline for diagnosis and management of thyroid diseases during pregnancy and postpartum. Chin J Endocrinol Metab 2012; 28: 354–371.
Google Scholar3. Maraka, S, Ospina, NM, O’Keeffe, DT, et al. Subclinical hypothyroidism in pregnancy: a systematic review and meta-analysis. Thyroid 2016; 26: 580–590.
Google Scholar | Crossref | Medline4. Stagnaro-Green, A, Abalovich, M, Alexander, E, et al. Guidelines of the American Thyroid Association for the diagnosis and management of thyroid disease during pregnancy and postpartum. Thyroid 2011; 21: 1081–1125.
Google Scholar | Crossref | Medline5. Blatt, AJ, Nakamoto, JM, Kaufman, HW. National status of testing for hypothyroidism during pregnancy and postpartum. J Clin Endocrinol Metab 2012; 97: 777–784.
Google Scholar | Crossref | Medline6. Li, C, Shan, Z, Mao, J, et al. Assessment of thyroid function during first-trimester pregnancy: what is the rational upper limit of serum TSH during the first trimester in Chinese pregnant women? J Clin Endocrinol Metab 2014; 99: 73–79.
Google Scholar | Crossref | Medline7. Wiles, KS, Jarvis, S, Nelson-Piercy, C. Are we overtreating subclinical hypothyroidism in pregnancy? BMJ 2015; 351: h4726.
Google Scholar8. Javed, Z, Sathyapalan, T. Levothyroxine treatment of mild subclinical hypothyroidism: a review of potential risks and benefits. Ther Adv Endocrinol Metab 2016; 7: 12–23.
Google Scholar | SAGE Journals9. Chinese Society of Endocrinology . Guideline on diagnosis and management of thyroid diseases during pregnancy and postpartum (2nd edition). Chin J Endocrinol Metab 2019; 35: 636–665.
Google Scholar10. Shan, ZY, Teng, WP. Hot controversial issues in management of thyroid disorders during pregnancy. Chin J Intern Med 2017; 56: 1–3.
Google Scholar | Medline11. Veltri, F, Kleynen, P, Grabczan, L, et al. Pregnancy outcomes are not altered by variation in thyroid function within the normal range in women free of thyroid disease. Eur J Endocrinol 2018; 178: 189–197.
Google Scholar | Crossref | Medline12. Cleary-Goldman, J, Malone, FD, Lambert-Messerlian, G, et al. Maternal thyroid hypofunction and pregnancy outcome. Obstet Gynecol 2008; 112: 85–92.
Google Scholar | Crossref | Medline13. Ashoor, G, Maiz, N, Rotas, M, et al. Maternal thyroid function at 11 to 13 weeks of gestation and subsequent fetal death. Thyroid 2010; 20: 989–993.
Google Scholar | Crossref | Medline14. Liu, H, Shan, Z, Li, C, et al. Maternal subclinical hypothyroidism, thyroid autoimmunity, and the risk of miscarriage: a prospective cohort study. Thyroid 2014; 24: 1642–1649.
Google Scholar | Crossref | Medline15. Medici, M, Timmermans, S, Visser, W, et al. Maternal thyroid hormone parameters during early pregnancy and birth weight: the Generation R Study. J Clin Endocrinol Metab 2013; 98: 59–66.
Google Scholar | Crossref | Medline16. Korevaar, TI, Schalekamp-Timmermans, S, de Rijke, YB, et al. Hypothyroxinemia and TPO-antibody positivity are risk factors for premature delivery: the generation R study. J Clin Endocrinol Metab 2013; 98: 4382–4390.
Google Scholar | Crossref | Medline17. Korevaar, TIM, Medici, M, Visser, TJ, et al. Thyroid disease in pregnancy: new insights in diagnosis and clinical management. Nat Rev Endocrinol 2017; 13: 610–622.
Google Scholar | Crossref | Medline18. Plowden, TC, Schisterman, EF, Sjaarda, LA, et al. Thyroid-stimulating hormone, anti-thyroid antibodies, and pregnancy outcomes. Am J Obstet Gynecol 2017; 217: 697.e1–e7.
Google Scholar | Crossref | Medline19. Liu, TT, Teng, WP. Iodine nutrition status and thyroid disease in the Chinese. Chin J Intern Med 2017; 56: 62–64.
Google Scholar | Medline20. Dong, AC, Stagnaro-Green, A. Differences in diagnostic criteria mask the true prevalence of thyroid disease in pregnancy: a systematic review and meta-analysis. Thyroid 2019; 29: 278–289.
Google Scholar | Crossref | Medline21. Korevaar, TI, Medici, M, Peeters, RP. Subclinical hypothyroidism overdiagnosis in pregnant women. JAMA Intern Med 2015; 175: 1872–1873.
Google Scholar | Crossref | Medline22. Ying, H, Tang, YP, Bao, YR, et al. Maternal TSH level and TPOAb status in early pregnancy and their relationship to the risk of gestational diabetes mellitus. Endocrine 2016; 54: 742–750.
Google Scholar | Crossref | Medline23. Tudela, CM, Casey, BM, McIntire, DD, et al. Relationship of subclinical thyroid disease to the incidence of gestational diabetes. Obstet Gynecol 2012; 119: 983–988.
Google Scholar | Crossref | Medline24. Wilson, KL, Casey, BM, McIntire, DD, et al. Subclinical thyroid disease and the incidence of hypertension in pregnancy. Obstet Gynecol 2012; 119: 315–320.
Google Scholar | Crossref | Medline25. Nazarpour, S, Ramezani Tehrani, F, Simbar, M, et al. Effects of levothyroxine treatment on pregnancy outcomes in pregnant women with autoimmune thyroid disease. Eur J Endocrinol 2017; 176: 253–265.
Google Scholar | Crossref | Medline26. Thangaratinam, S, Tan, A, Knox, E, et al. Association between thyroid autoantibodies and miscarriage and preterm birth: meta-analysis of evidence. BMJ 2011; 342: d2616.
Google Scholar | Crossref27. Negro, R, Schwartz, A, Gismondi, R, et al. Increased pregnancy loss rate in thyroid antibody negative women with TSH levels between 2.5 and 5.0 in the first trimester of pregnancy. J Clin Endocrinol Metab 2010; 95: E44–8.
Google Scholar | Crossref28. Sheehan, PM, Nankervis, A, Araujo Júnior, E, et al. Maternal thyroid disease and preterm birth: systematic review and meta-analysis. J Clin Endocrinol Metab 2015; 100: 4325–4331.
Google Scholar | Crossref | Medline29. Li, CL, Huang, H, Li, QH. Relationship of subclinical hypothyroidism with gestational diabetes mellitus during early pregnancy. Chin J Endocrinol Metab 2014; 30: 747–748.
Google Scholar30. Kent, NL, Young, SL, Akison, LK, et al. Is the link between elevated TSH and gestational diabetes mellitus dependant on diagnostic criteria and thyroid antibody status: a systematic review and meta-analysis. Endocrine 2021; 74: 38–49.
Google Scholar | Crossref | Medline31. Lee, SY. Subclinical hypothyroidism in pregnancy may have long-term effects on metabolic parameters. J Clin Endocrinol Metab 2020; 105: e2628-e2629.
Google Scholar | Crossref32. Arbib, N, Hadar, E, Sneh-Arbib, O, et al. First trimester thyroid stimulating hormone as an independent risk factor for adverse pregnancy outcome. J Matern Fetal Neonatal Med 2017; 30: 2174–2178.
Google Scholar | Crossref | Medline33. Parizad Nasirkandy, M, Badfar, G, Shohani, M, et al. The relation of maternal hypothyroidism and hypothyroxinemia during pregnancy on preterm birth: an updated systematic review and meta-analysis. Int J Reprod Biomed 2017; 15: 543–552.
Google Scholar | Crossref | Medline34. Lai, H, Zhan, ZY, Liu, H. Association between thyroid hormone parameters during early pregnancy and gestational hypertension: a prospective cohort study. J Int Med Res. Epub ahead of print 18 February 2020. DOI: 10.1177/0300060520904814.
Google Scholar | Crossref35. Casey, BM, Dashe, JS, Wells, CE, et al. Subclinical hypothyroidism and pregnancy outcomes. Obstet Gynecol 2005; 105: 239–245.
Google Scholar | Crossref | Medline