Temporal distribution of blood donations in three Brazilian blood centers and its repercussion on the blood supply
Oliveira, Claudia di Lorenzo
Almeida-neto, Cesar de
Liu, Emily Jing
Sabino, Ester Cerdeira [UNIFESP]
Leao, Silvana Carneiro
Goncalez, Thelma Therezinha
Proietti, Anna Barbara de Freitas Carneiro
MetadataShow full item record
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.
- Em verificação - Geral 
Showing items related by title, author, creator and subject.
Avaliacão das características com maior influência na qualidade das unidades de sangue de cordao umbilical em um banco público Santos, Sandra Valeria Francisconi [UNIFESP] (Universidade Federal de São Paulo (UNIFESP), 2014-11-26)Analyses of Umbilical Cord blood (UCB) transplants demonstrate that the probability of engraftment and the time for hematopoietic recovery is closely related to the total number of infused cells. Aims: To evaluate, among ...
Freqüências dos grupos sangüíneos e incompatibilidades ABO e RhD em puérperas e seus recém-nascidos Baiochi, Eduardo [UNIFESP]; Camano, Luiz [UNIFESP]; Sass, Nelson [UNIFESP]; Colas, Osmar Ribeiro [UNIFESP] (Associação Médica Brasileira, 2007-02-01)OBJECTIVE: This study aimed to assess the frequency of different blood phenotypes and to predict the risk of Rh D alloimmunization and maternal-fetal incompatibility in a Brazilian population living in the West zone of the ...
A new blood coagulation inhibitor from the snake Bothrops jararaca plasma: isolation and characterization Tanaka-Azevedo, A. M.; Tanaka, A. S.; Sano-Martins, I. S. (Elsevier B.V., 2003-09-05)A novel thrombin inhibitor, Bothrops jararaca inhibitor (BjI), has been identified and purified from B. jararaca snake blood by two anionic chromatographic steps. Purified BjI showed two polypeptide chains with molecular ...