Blood donor return behavior in South Africa and the United States before and during the COVID-19 pandemic.

Autor: Jagirdar H; School of Population and Global Health, McGill University, Montreal, Quebec, Canada., Nwobi NH; School of Population and Global Health, McGill University, Montreal, Quebec, Canada., Swanevelder R; South African National Blood Service, Johannesburg, South Africa., Cockeran R; South African National Blood Service, Johannesburg, South Africa., Bruhn R; Vitalant Research Institute, San Francisco, California, USA.; University of California, San Francisco, California, USA., Kaidarova Z; Vitalant Research Institute, San Francisco, California, USA., Bravo MD; Vitalant Medical Affairs, Scottsdale, Arizona, USA., van den Berg K; South African National Blood Service, Johannesburg, South Africa.; Division of Clinical Haematology, University of the Free State, Bloemfontein, South Africa., Custer BS; Vitalant Research Institute, San Francisco, California, USA.; University of California, San Francisco, California, USA., Vassallo R; Vitalant Medical Affairs, Scottsdale, Arizona, USA., Ding Y; Desautels Faculty of Management, McGill University, Montreal, Quebec, Canada., Panagiotoglou D; School of Population and Global Health, McGill University, Montreal, Quebec, Canada., Russell WA; School of Population and Global Health, McGill University, Montreal, Quebec, Canada.
Jazyk: angličtina
Zdroj: Transfusion [Transfusion] 2024 Aug; Vol. 64 (8), pp. 1492-1502. Date of Electronic Publication: 2024 Jun 28.
DOI: 10.1111/trf.17934
Abstrakt: Background: Studies preceding the COVID-19 pandemic found that slower time-to-return was associated with first-time, deferred, and mobile drive blood donors. How donor return dynamics changed during the COVID-19 pandemic is not well understood.
Methods: We analyzed visits by whole blood donors from 2017 to 2022 in South Africa (SA) and the United States (US) stratified by mobile and fixed environment, first-time and repeat donor status, and pre-COVID19 (before March 2020) and intra-COVID19. We used Kaplan-Meier curves to characterize time-to-return, cumulative incidence functions to analyze switching between donation environments, and Cox proportional hazards models to analyze factors influencing time-to-return.
Results: Overall time-to-return was shorter in SA. Pre-COVID19, the proportion of donors returning within a year of becoming eligible was lower for deferred donors in both countries regardless of donation environment and deferral type. Intra-COVID19, the gap between deferred and non-deferred donors widened in the US but narrowed in SA, where efforts to schedule return visits from deferred donors were intensified, particularly for non-hemoglobin-related deferrals. Intra-COVID19, the proportion of donors returning within a year in SA was higher for deferred first-time donors (>81%) than for successful first-time donors (80% at fixed sites; 69% at mobile drives).
Conclusions: The pandemic complicated efforts to recruit new donors and schedule returning visits after completed donations. Concerted efforts to improve time-to-return for deferred donors helped mitigate donation loss in SA during the public health emergency.
(© 2024 The Author(s). Transfusion published by Wiley Periodicals LLC on behalf of AABB.)
Databáze: MEDLINE
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