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Comment & Response
May 11, 2022

Considerations for Use of Propensity Score Matching in Specific Patient Populations

Author Affiliations
  • 1Harvard T.H. Chan School of Public Health, Boston, Massachusetts
  • 2Institute of Public Health, Charité-Universitätsmedizin Berlin, Berlin, Germany
JAMA Surg. 2022;157(8):743-744. doi:10.1001/jamasurg.2022.1495

To the Editor Zarinsefat and colleagues1 evaluated the long-term outcomes following kidney and liver transplants in recipients with HIV using a retrospective cohort study. Patients who are HIV-positive tend to have other comorbidities, including concomitant infections or AIDS-related conditions. These inadvertently affect whether the patient is considered for a transplant. Thus, to control for confounding, the authors used propensity score matching and concluded that kidney and liver transplants in HIV-positive patients had comparable long-term outcomes with those in matched HIV-negative patients.

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