Neck circumference as a metabolic health marker among women with polycystic ovary syndrome (PCOS): a systematic review and meta-analysis
Haapakangas, Suvi M; Koskenkari, Noona V S; Hurskainen, Elisa L; Arffman, Riikka K; Ollila, Meri-Maija; Piltonen, Terhi T (2025-04-21)
Springer
21.04.2025
Haapakangas, S.M., Koskenkari, N.V.S., Hurskainen, E.L. et al. Neck circumference as a metabolic health marker among women with polycystic ovary syndrome (PCOS): a systematic review and meta-analysis. Int J Obes (2025). https://doi.org/10.1038/s41366-025-01753-1
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© The Author(s) 2025. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
https://creativecommons.org/licenses/by/4.0/
© The Author(s) 2025. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202504232845
https://urn.fi/URN:NBN:fi:oulu-202504232845
Tiivistelmä
Abstract
Background:
Polycystic ovary syndrome (PCOS) is associated with obesity, insulin resistance (IR), metabolic syndrome (MetS), and abnormal fat distribution, especially fat excess in the upper body. Neck circumference (NC) reflects the adiposity accumulation in the upper body and may be a valuable and simple screening tool for metabolic risk among women with PCOS.
Methods:
A systematic review was conducted using PubMed/Medline and Scopus based on the search terms “neck circumference” and “PCOS”. Studies that examined associations of NC and anthropometric measurements, blood pressure (BP), lipid values, glucose metabolism, MetS, IR, or related disorders among women with PCOS were included. A meta-analysis was performed to compare NC values between women with PCOS and non-PCOS controls.
Results:
Of 139 publications, 13 full texts that met the selection criteria were included in the systematic review. Eight studies had non-PCOS controls and were thus eligible for the meta-analysis. Women with PCOS had significantly larger NC compared to non-PCOS controls (SMD: 0.78, 95% CI: 0.31–1.25, p = 0.0012). We found a positive association between larger NC and higher waist circumference, hip circumference, triglycerides, systolic BP, fasting insulin, and HOMA-IR or lower HOMA%S and higher prevalence of MetS or IR in the majority of the included studies. Neck circumference cut-off values for MetS varied from 33 cm to 34.25 cm and for IR 34.25 cm up to 42 cm among women with PCOS. Most of the studies were done with Asian populations thus limiting applicability of the study results to other ethnicities.
Conclusions:
This meta-analysis demonstrated increased NC among women with PCOS compared to healthy controls. Women with PCOS and larger NC were more insulin resistant and had more MetS-related abnormalities when compared to women with smaller NC with or without PCOS. Data considering NC cut-off values for MetS and IR among women with PCOS are scarce, and further studies are needed, particularly among more varied ethnic populations.
Background:
Polycystic ovary syndrome (PCOS) is associated with obesity, insulin resistance (IR), metabolic syndrome (MetS), and abnormal fat distribution, especially fat excess in the upper body. Neck circumference (NC) reflects the adiposity accumulation in the upper body and may be a valuable and simple screening tool for metabolic risk among women with PCOS.
Methods:
A systematic review was conducted using PubMed/Medline and Scopus based on the search terms “neck circumference” and “PCOS”. Studies that examined associations of NC and anthropometric measurements, blood pressure (BP), lipid values, glucose metabolism, MetS, IR, or related disorders among women with PCOS were included. A meta-analysis was performed to compare NC values between women with PCOS and non-PCOS controls.
Results:
Of 139 publications, 13 full texts that met the selection criteria were included in the systematic review. Eight studies had non-PCOS controls and were thus eligible for the meta-analysis. Women with PCOS had significantly larger NC compared to non-PCOS controls (SMD: 0.78, 95% CI: 0.31–1.25, p = 0.0012). We found a positive association between larger NC and higher waist circumference, hip circumference, triglycerides, systolic BP, fasting insulin, and HOMA-IR or lower HOMA%S and higher prevalence of MetS or IR in the majority of the included studies. Neck circumference cut-off values for MetS varied from 33 cm to 34.25 cm and for IR 34.25 cm up to 42 cm among women with PCOS. Most of the studies were done with Asian populations thus limiting applicability of the study results to other ethnicities.
Conclusions:
This meta-analysis demonstrated increased NC among women with PCOS compared to healthy controls. Women with PCOS and larger NC were more insulin resistant and had more MetS-related abnormalities when compared to women with smaller NC with or without PCOS. Data considering NC cut-off values for MetS and IR among women with PCOS are scarce, and further studies are needed, particularly among more varied ethnic populations.
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