Evaluation of the return rate of volunteer blood donors
AUTOR(ES)
Lourençon, Adriana de Fátima, Almeida, Rodrigo Guimarães dos Santos, Ferreira, Oranice, Martinez, Edson Zangiacomi
FONTE
Revista Brasileira de Hematologia e Hemoterapia
DATA DE PUBLICAÇÃO
2011-06
RESUMO
BACKGROUND: To convert first-time blood donors into regular volunteer donors is a challenge to transfusion services. OBJECTIVES: This study aims to estimate the return rate of first time donors of the Ribeirão Preto Blood Center and of other blood centers in its coverage region. METHODS: The histories of 115,553 volunteer donors between 1996 and 2005 were analyzed. Statistical analysis was based on a parametric long-term survival model that allows an estimation of the proportion of donors who never return for further donations. RESULTS: Only 40% of individuals return within one year after the first donation and 53% return within two years. It is estimated that 30% never return to donate. Higher return rates were observed among Black donors. No significant difference was found in non-return rates regarding gender, blood type, Rh blood group and blood collection unit. CONCLUSIONS: The low percentage of first-time donors who return for further blood donation reinforces the need for marketing actions and strategies aimed at increasing the return rates.
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