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Raets L, Minschart C, Van den Bruel A, Van den Bogaert E, Van Crombrugge P, Moyson C, Verhaeghe J, Vandeginste S, Verlaenen H, Vercammen C, Maes T, Dufraimont E, Roggen N, De Block C, Jacquemyn Y, Mekahli F, De Clippel K, Loccufier A, Laenen A, Devlieger R, Mathieu C, Decallonne B, Benhalima K. Higher Thyroid fT3-to-fT4 Ratio Is Associated with Gestational Diabetes Mellitus and Adverse Pregnancy Outcomes. J Clin Med 2022; 11:jcm11175016. [PMID: 36078946 PMCID: PMC9457218 DOI: 10.3390/jcm11175016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/22/2022] [Accepted: 08/22/2022] [Indexed: 12/05/2022] Open
Abstract
Aim: To determine the association between thyroid function and the risk of developing gestational diabetes mellitus (GDM) and adverse pregnancy outcomes. Methods: This case−control study was a sub-analysis of the BEDIP-N study, in which 199 GDM women were matched for age and body mass index with 398 controls. Thyroid-stimulating hormone (TSH), free thyroxine (fT4), free triiodothyronine (fT3), and thyroid peroxidase (TPO) antibodies were measured at 6−14 weeks and 26−28 weeks during pregnancy. TSH and fT4 were also measured in early postpartum in GDM women. Results: The fT3-to-fT4 ratio at 26−28 weeks was positively associated with GDM risk with an adjusted odds ratio (aOR for smoking, education, parity, ethnicity, gestational weight gain, and (family) history of diabetes or GDM) of 2.12 (95% CI 1.07; 4.23), comparing the highest with the lowest tertile. Higher fT3 levels and a higher fT3-to-fT4 ratio were associated with a less favorable metabolic profile with higher BMI and more insulin resistance during pregnancy and postpartum. Women in the upper fT3 tertile and the upper fT3-to-fT4 ratio had a higher rate of preeclampsia [4.6% (10) vs. 1.0% (2), p = 0.040, and 4.4% (9) vs. 0.5% (1), p = 0.020], gestational hypertension [8.3% (18) vs. 3.1% (6), p = 0.034 and 8.9% (18) vs. 2.0% (4), p = 0.003], and caesarean sections [29.4% (63) vs. 16.1% (31), p = 0.002 and 32.2% (65) vs. 12.7% (25), p < 0.001]. Conclusion: A higher fT3-to-fT4 ratio late into pregnancy was associated with GDM, adverse pregnancy outcomes, and an adverse metabolic profile in early postpartum.
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Affiliation(s)
- Lore Raets
- Department of Endocrinology, University Hospital Gasthuisberg, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
- Correspondence: ; Tel.: +32-16347296
| | - Caro Minschart
- Department of Endocrinology, University Hospital Gasthuisberg, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Annick Van den Bruel
- Department of Endocrinology, AZ St Jan Brugge, Ruddershove 10, 8000 Brugge, Belgium
| | | | - Paul Van Crombrugge
- Department of Endocrinology, OLV-Ziekenhuis Aalst-Asse-Ninove, Moorselbaan 164, 9300 Aalst, Belgium
| | - Carolien Moyson
- Department of Endocrinology, University Hospital Gasthuisberg, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Johan Verhaeghe
- Department of Obstetrics & Gynecology, UZ Gasthuisberg, Katholieke Universiteit Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Sofie Vandeginste
- Department of Obstetrics & Gynecology, OLV-Ziekenhuis Aalst-Asse-Ninove, Moorselbaan 164, 9300 Aalst, Belgium
| | - Hilde Verlaenen
- Department of Obstetrics & Gynecology, OLV-Ziekenhuis Aalst-Asse-Ninove, Moorselbaan 164, 9300 Aalst, Belgium
| | - Chris Vercammen
- Department of Endocrinology, Imelda Ziekenhuis, Imeldalaan 9, 2820 Bonheiden, Belgium
| | - Toon Maes
- Department of Endocrinology, Imelda Ziekenhuis, Imeldalaan 9, 2820 Bonheiden, Belgium
| | - Els Dufraimont
- Department of Obstetrics & Gynecology, Imelda Ziekenhuis, Imeldalaan 9, 2820 Bonheiden, Belgium
| | - Nele Roggen
- Department of Obstetrics & Gynecology, Imelda Ziekenhuis, Imeldalaan 9, 2820 Bonheiden, Belgium
| | - Christophe De Block
- Department of Endocrinology-Diabetology-Metabolism, Antwerp University Hospital, Drie Eikenstraat 655, 2650 Edegem, Belgium
| | - Yves Jacquemyn
- Department of Obstetrics & Gynecology, Antwerp University Hospital (UZA), Drie Eikenstraat 655, 2650 Edegem, Belgium
- Antwerp Surgical Training, Anatomy and Research Centre, Global Health Institute GHI, Antwerp University (UA), 2000 Antwerp, Belgium
| | - Farah Mekahli
- Department of Endocrinology, Kliniek St-Jan Brussel, Kruidtuinlaan 32, 1000 Brussel, Belgium
| | - Katrien De Clippel
- Department of Obstetrics & Gynecology, Kliniek St-Jan Brussel, Kruidtuinlaan 32, 1000 Brussel, Belgium
| | - Anne Loccufier
- Department of Obstetrics & Gynecology, Kliniek St-Jan Brussel, Kruidtuinlaan 32, 1000 Brussel, Belgium
| | - Annouschka Laenen
- Center of Biostatics and Statistical Bioinformatics, Katholieke Universiteit Leuven, Kapucijnenvoer 35 Bloc D, Box 7001, 3000 Leuven, Belgium
| | - Roland Devlieger
- Department of Obstetrics & Gynecology, UZ Gasthuisberg, Katholieke Universiteit Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Chantal Mathieu
- Department of Endocrinology, University Hospital Gasthuisberg, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Brigitte Decallonne
- Department of Endocrinology, University Hospital Gasthuisberg, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Katrien Benhalima
- Department of Endocrinology, University Hospital Gasthuisberg, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
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