Incidence and Risk of Cardiovascular Outcomes in Patients With Anorexia Nervosa
2024

Cardiovascular Risks in Patients with Anorexia Nervosa

Sample size: 22891 publication 10 minutes Evidence: high

Author Information

Author(s): Tseng Mei-Chih Meg MD PhD, Chiou Kuan-Rau MD, Shao Joni Yu-Hsuan PhD, Liu Hung-Yi MBA

Primary Institution: Taipei Medical University

Hypothesis

Do patients with anorexia nervosa (AN) have an increased risk of cardiovascular conditions?

Conclusion

Patients with anorexia nervosa have an increased risk of cardiovascular conditions, particularly in the initial years after diagnosis.

Supporting Evidence

  • Patients with anorexia nervosa had a higher incidence rate of major adverse cardiovascular events compared to controls.
  • The cumulative incidence rate of major adverse cardiovascular events was 4.82% in the anorexia nervosa group at 5 years.
  • Significantly higher risks of congestive heart failure and conduction disorder were observed in the anorexia nervosa group.
  • The risk of ischemic heart disease increased only after 60 months of follow-up.

Takeaway

People with anorexia nervosa are more likely to have heart problems, especially when they first get diagnosed, but many of these issues can get better over time.

Methodology

This longitudinal cohort study used a population-based health insurance database to analyze cardiovascular outcomes in patients with anorexia nervosa and matched controls.

Potential Biases

The cohort was selected from a population seeking medical treatment, which may not represent all individuals with anorexia nervosa.

Limitations

The study may overestimate outcomes due to selection bias, and it lacked data on potential confounders like body weight and lifestyle.

Participant Demographics

The study included 2081 patients with anorexia nervosa, predominantly young women (91.3%) with a mean age of 24.9 years.

Statistical Information

P-Value

p<0.001

Confidence Interval

95% CI, 3.85%-6.02%

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1001/jamanetworkopen.2024.51094

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