Temporal distribution of blood donations in three Brazilian blood centers and its repercussion on the blood supply

Revista Brasileira de Hematologia e Hemoterapia

Claudia Di Lorenzo Oliveira¹  Cesar De Almeida-neto¹  Emily Jing Liu¹  Ester Cerdeira Sabino¹  Silvana Carneiro Leao¹  Paula Loureiro¹  David Wright¹  Brian Custer¹  Thelma Therezinha Goncalez¹  Ligia Capuani¹  Michael Busch¹  Anna Barbara De Freitas Carneiro Proietti¹ 

关键词: Blood donors;    Temporal distribution;    Blood banks;    Holidays;    Time factors;    Brazil;   

DOI  :  10.5581/1516-8484.20130071

来源: SciELO

【 摘 要 】

BACKGROUND: Seasonal distribution of blood donation hinders efforts to provide a safe and adequate blood supply leading to chronic and persistent shortages. This study examined whether holidays, geographical area and donation type (community versus replacement) has any impact on the fluctuation of donations.METHODS: The numbers of blood donations from 2007 through 2010 in three Brazilian Retrovirus Epidemiological Donor Study II (REDS-II) participating centers were analyzed according to the week of donation. The weeks were classified as holiday or non-holiday. To compare donations performed during holiday versus non-holiday weeks, tabulations and descriptive statistics for weekly donations by blood center were examined and time series analysis was conducted.RESULTS: The average weekly number of donations varied according to the blood center and type of week. The average number of donations decreased significantly during Carnival and Christmas and increased during the Brazilian National Donor Week. The fluctuation was more pronounced in Recife and Belo Horizonte when compared to São Paulo and higher among community donors.CONCLUSION: National bank holidays affect the blood supply by reducing available blood donations. Blood banks should take into account these oscillations in order to plan local campaigns, aiming at maintaining the blood supply at acceptable levels.

【 授权许可】

CC BY-NC-ND   
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