Abstract
Context: Recent studies have shown that in Portugal the number of units of data released and the number of units of blood have been reduced considerably. Objective: To synthesize primary scientific evidence on the main factors influencing blood donation through a systematic review of the literature. Methods : Systematic review of the literature according to the Joanna Briggs Institute model. SciELO®, B-On® and Pubmed® databases were used with the key -words of blood, blood donation, factors, blood donation and factors. Articles in Portuguese and English were included between 2013 and 2017, With text and bibliographical references fully available, in scientific journals with peer-review and relevant to a thematic in research. Of a total of 72.790 articles found, 6 were included. Results : The results indicate that the factors that influence blood donation are related to fear; insufficient and ineffective campaigns; concealment of information at the time of screening; non-remuneration; bureaucracy; my answer is an acquaintance; reinforcement of social gain; gaining a justified absence from service; altruism; cognitive lev el; social structure; age; sex ; marital status; history of blood debits and risk behaviors. Conclusions: It has been shown that there are factors that influence positively and negatively the donation of blood, however, it is necessary to conduct new studies that analyze the factors that influence blood donation in Portugal in order to define the strategies that increase blood donation in our country. Key-words: Blood donation; factors; systematic literature review; nursing investigation
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