PCOS Increases Eating Disorder Risk

TOPLINE:

Women with polycystic ovary syndrome (PCOS) have higher odds of some eating disorders, including bulimia nervosa, binge eating disorder, and disordered eating, regardless of weight.

METHODOLOGY:

• A small systematic review and meta-analysis showed increased odds of any eating disorders and disordered eating scores in adult women with PCOS compared with women without PCOS.
• As part of the 2023 update of the International Evidence-based Guideline for the Assessment of and Management of PCOS, the same researchers updated and expanded their analysis to include adolescents and specific eating disorders and to evaluate the effect of body mass index (BMI) on these risks.
• They included 20 cross-sectional studies involving 28,922 women with PCOS and 258,619 women without PCOS; PCOS was diagnosed by either National Institutes of Health or Rotterdam criteria, as well as by patient self-report or hospital records.
• Eating disorders were screened using a validated disordered eating screening tool or diagnostic criteria from the Diagnostic and Statistical Manual of Mental Disorders.
• The outcomes of interest included the prevalence of any eating disorder, individual eating disorders, disordered eating, and mean disordered eating scores.

TAKEAWAY:

• Women with PCOS had 53% higher odds (odds ratio [OR], 1.53; 95% CI, 1.29-1.82; 8 studies) of any eating disorder than control individuals without PCOS.
• The likelihood of bulimia nervosa (OR, 1.34; 95% CI, 1.17-1.54; 5 studies) and binge eating disorder (OR, 2.09; 95% CI, 1.18-3.72; 4 studies) was higher in women with PCOS, but no significant association was found for anorexia nervosa.
• The mean disordered eating scores and odds of disordered eating were higher in women with PCOS (standardized mean difference [SMD], 0.52; 95% CI, 0.28-0.77; 13 studies; and OR, 2.84; 95% CI, 1.0-8.04; 8 studies; respectively).
• Disordered eating scores were higher in both the normal and higher weight categories (BMI < 25; SMD, 0.36; 95% CI, 0.15-0.58; 5 studies; and BMI ≥ 25; SMD, 0.68; 95% CI, 0.22-1.13; 4 studies; respectively).

IN PRACTICE:

“Our findings emphasize the importance of screening women with PCOS for eating disorders before clinicians share any lifestyle advice,” the lead author said in a press release. “The lifestyle modifications we often recommend for women with PCOS — including physical activity, healthy diet, and behavior modifications — could hinder the recovery process for eating disorders.”

SOURCE:

The study was led by Laura G. Cooney, MD, MSCE, University of Wisconsin, Madison, Wisconsin, and published online on August 8, 2024, in The Journal of Clinical Endocrinology & Metabolism.

LIMITATIONS:

The included studies were observational in nature, limiting the ability to adjust for potential confounders. The cross-sectional design of the included studies precluded determining whether the diagnosis of PCOS or the symptoms of disordered eating occurred first. Studies from 10 countries were included, but limited data from developing or Asian countries restrict the generalizability of the results.

DISCLOSURES:

This study was conducted to inform recommendations of the 2023 International Evidence-based Guideline in PCOS, which was funded by the Australian National Health and Medical Research Council, Centre for Research Excellence in Polycystic Ovary Syndrome, and other sources. The authors declared no conflicts of interests.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication.