Heart failure & cardiomyopathies

Sex Differences in Heart Transplantation Outcomes: A 5-Year Review of the 2018 U.S. Allocation Policy

JACC AdvPublished Multivariable Fine-Gray competing risk analyses and multivariable Cox regression of United Network for Organ Sharing Registry data

Main finding · Rate of HT (waitlist cohort)Result — go to the resultAdjusted subdistribution hazard ratio 1.24 95% CI 1.18–1.31

Authors' conclusion

Five years after implementation of the 2018 allocation policy, women have higher rates of HT and lower delisting due to death or clinical deterioration as compared to men with lower long-term post-HT survival.

Study context

Population
Adults (≥18 years) listed for first-time, single-organ heart transplant (HT) in the United Network for Organ Sharing Registry, and first-time single-organ HT recipients, after the 2018 U.S. allocation policy revisionwaitlist candidates (26.3% women) 15,422 · HT recipients (27.4% women) 12,892
Exposure
Women vs men
Methodological detailswaitlist cohort, transplant cohort, October 18, 2018, and October 17, 2023
  • Waitlist cohort
  • Transplant cohort
  • October 18, 2018, and October 17, 2023

Main finding

Rate of HT (waitlist cohort)

Adjusted subdistribution hazard ratio

1.24

95% CI 1.18–1.31

P < 0.001

Women vs men
aSHR 1.24 (95% CI 1.18–1.31); P < 0.001

As reported in the abstract

Observational data: associations, not effects.

Further findings

OutcomeEstimateP value
Delisting for death or clinical deterioration (waitlist cohort) · lower rate in womenaSHR 0.81 (95% CI 0.70–0.94)P = 0.005
Adjusted post-HT mortality · 1-year · higher in womenaHR 1.14 (95% CI 1.02–1.28)P = 0.019
Adjusted post-HT mortality · 5-years · higher in womenaHR 1.14 (95% CI 1.02–1.27)P = 0.021

Original publication

Sex Differences in Heart Transplantation Outcomes: A 5-Year Review of the 2018 U.S. Allocation Policy. JACC Adv. Published 20 May 2026. doi:10.1016/j.jacadv.2026.102820

Summarised from the published abstract; every number is checked against it

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