Evidence map›Paper›PMID 24106441›Full record

ArticleRevista brasileira de hematologia e hemoterapia2013

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

Claudia Di Lorenzo Oliveira, Cesar de Almeida-Neto, Emily Jing Liu, Ester Cerdeira Sabino, Silvana Carneiro Leão, Paula Loureiro, David Wright, Brian Custer, Thelma Therezinha Gonçalez, Ligia Capuani and 2 more

Open access · diamondAbstract read
In one paragraph

Article in Revista brasileira de hematologia e hemoterapia, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
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  3. Article
  4. Difficult blood donor choices: dance, feast or donate blood?Revista brasileira de hematologia e hemoterapia · 2013
    Article
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  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 7 institutions in 2 countries.

Claudia Di Lorenzo OliveiraUniversidade Federal de São João del-Rei - UFSJ, São João del-Rei, MG, Brazil.
Cesar de Almeida-Neto
Emily Jing Liu
Ester Cerdeira Sabino
Silvana Carneiro Leão
Paula Loureiro
David Wright
Brian Custer
Thelma Therezinha Gonçalez
Ligia Capuani
Michael Busch
Anna Bárbara de Freitas Carneiro Proietti
Blood Systems Research Institute · USFundação Pró-Sangue Hemocentro de São Paulo · BRWestat (United States) · USFederal University of São João del-Rei · BRUniversidade de Pernambuco · BRUniversidade Federal de Minas Gerais · BRUniversidade Federal de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSeasonal 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.

methodsThe 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.

resultsThe 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.

conclusionNational 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.

Indexed as

Blood banksBlood donorsBrazilHolidaysTemporal distributionTime factors

Identifiers

PMID24106441
PMCPMC3789428
OpenAlexW2088188558

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.