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The effect of donor–recipient sex matches on lung transplant survival: An analysis of the United Network for Organ Sharing database
Profozich, Elizabeth Kashem, Abul Yanagida, Roh Cheng, Ke Kehara, Hiromu Shigemura, Norihisa Toyoda, Yoshiya
Profozich, Elizabeth
Kashem, Abul
Yanagida, Roh
Cheng, Ke
Kehara, Hiromu
Shigemura, Norihisa
Toyoda, Yoshiya
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Journal article
Date
2023-04-16
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Surgery
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https://doi.org/10.1016/j.xjon.2024.01.018
Abstract
Objective: To investigate the impact of donor–recipient (DR) sex matches on survival after lung transplantation while controlling for size difference in the United Network of Organ Sharing (UNOS) database. Methods: We performed a retrospective study of 27,423 lung transplant recipients who were reported in the UNOS database (January 2005-March 2020). Patients were divided into groups based on their respective DR sex match: male to male (MM), male to female (MF), female to female, (FF), and female to male (FM). Kaplan–Meier curve and Cox regression with log-rank tests were used to assess 1-, 3-, 5-, and 10-year survival. We also modeled survival for each group after controlling for size-related variables via the Cox regression. Results: Kaplan–Meier curves showed overall significance at 1-, 3-, 5-, and 10-year end points (P < .0001). Estimated median survival time based on Kaplan–Meier analysis were 6.41 ± 0.15, 6.13 ± 0.18, 5.86 ± 0.10, and 5.37 ± 0.17 years for FF, MF, MM, and FM, respectively (P < .0001). After we controlled for size differences, FF had statistically significantly longer 5- and 10-year survival than all other cohorts. MF also had statistically significantly longer 5- and 10-year survival than FM. Conclusions: When variables associated with size were controlled for, FF had improved survival than other DR groups. A female recipient may experience longer survival with a female donor’s lungs versus a male donor’s lungs of similar size.
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Elizabeth Profozich, Abul Kashem, Roh Yanagida, Manish Suryapalam, Ke Cheng, Hiromu Kehara, Norihisa Shigemura, Yoshiya Toyoda, The effect of donor–recipient sex matches on lung transplant survival: An analysis of the United Network for Organ Sharing database, JTCVS Open, Volume 18, 2024, Pages 400-406, ISSN 2666-2736, https://doi.org/10.1016/j.xjon.2024.01.018.
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Elsevier
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JTCVS Open, Vol. 18
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