Demographic characteristics and prevalence of serologic markers among blood donors who use confidential unit exclusion (CUE) in São Paulo, Brazil

Implications for modification of CUE polices in Brazil

Cesar De Almeida-Neto, Jing Liu, David J. Wright, Alfredo Mendrone-Junior, Pedro L. Takecian, Yu Sun, Joao Eduardo Ferreira, Dalton De Alencar Fischer Chamone, Michael P. Busch, Ester Cerdeira Sabino

Research output: Contribution to journalArticle

Abstract

Background: This study evaluated demographic profiles and prevalence of serologic markers among donors who used confidential unit exclusion (CUE) to assess the effectiveness of CUE and guide public policies regarding the use of CUE for enhancing safety versus jeopardizing the blood supply by dropping CUE. Study design and methods We conducted a cross-sectional analysis of whole blood donations at a large public blood center in São Paulo from July 2007 through June 2009, compared demographic data, and confirmed serologic results among donors who used and who have never used CUE (CUE never). Results: There were 265,550 whole blood units collected from 181,418 donors from July 2007 through June 2009. A total of 9658 (3.6%) units were discarded, 2973 (1.1%) because CUE was used at the current donation (CUE now) and 6685 (2.5%) because CUE was used in the past (CUE past). The CUE rate was highest among donors with less than 8 years of education (odds ratio [OR], 2.78; 95% confidence interval [CI], 2.51-3.08). CUE now donations were associated with higher positive infectious disease marker rates than CUE never donations (OR, 1.41; CI, 1.13-1.77), whereas CUE past donations were not (OR, 1.04; CI, 0.75-1.45). Cconclusions: The CUE process results in a high rate of unit discard. CUE use on an individual donation appears predictive of a high-risk marker-positive donation and, thus, appears to contribute modestly to blood safety. The policy of discarding units from donors who have previously CUE-positive donations does not improve safety and should be discontinued.

Original languageEnglish (US)
Pages (from-to)191-197
Number of pages7
JournalTransfusion
Volume51
Issue number1
DOIs
StatePublished - Jan 2011
Externally publishedYes

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Police
Blood Donors
Brazil
Demography
Tissue Donors
Odds Ratio
Confidence Intervals
Blood Safety
Safety
Public Policy
Communicable Diseases
Cross-Sectional Studies
Education

ASJC Scopus subject areas

  • Hematology
  • Immunology
  • Immunology and Allergy

Cite this

Demographic characteristics and prevalence of serologic markers among blood donors who use confidential unit exclusion (CUE) in São Paulo, Brazil : Implications for modification of CUE polices in Brazil. / De Almeida-Neto, Cesar; Liu, Jing; Wright, David J.; Mendrone-Junior, Alfredo; Takecian, Pedro L.; Sun, Yu; Ferreira, Joao Eduardo; De Alencar Fischer Chamone, Dalton; Busch, Michael P.; Sabino, Ester Cerdeira.

In: Transfusion, Vol. 51, No. 1, 01.2011, p. 191-197.

Research output: Contribution to journalArticle

De Almeida-Neto, C, Liu, J, Wright, DJ, Mendrone-Junior, A, Takecian, PL, Sun, Y, Ferreira, JE, De Alencar Fischer Chamone, D, Busch, MP & Sabino, EC 2011, 'Demographic characteristics and prevalence of serologic markers among blood donors who use confidential unit exclusion (CUE) in São Paulo, Brazil: Implications for modification of CUE polices in Brazil', Transfusion, vol. 51, no. 1, pp. 191-197. https://doi.org/10.1111/j.1537-2995.2010.02799.x
De Almeida-Neto, Cesar ; Liu, Jing ; Wright, David J. ; Mendrone-Junior, Alfredo ; Takecian, Pedro L. ; Sun, Yu ; Ferreira, Joao Eduardo ; De Alencar Fischer Chamone, Dalton ; Busch, Michael P. ; Sabino, Ester Cerdeira. / Demographic characteristics and prevalence of serologic markers among blood donors who use confidential unit exclusion (CUE) in São Paulo, Brazil : Implications for modification of CUE polices in Brazil. In: Transfusion. 2011 ; Vol. 51, No. 1. pp. 191-197.
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title = "Demographic characteristics and prevalence of serologic markers among blood donors who use confidential unit exclusion (CUE) in S{\~a}o Paulo, Brazil: Implications for modification of CUE polices in Brazil",
abstract = "Background: This study evaluated demographic profiles and prevalence of serologic markers among donors who used confidential unit exclusion (CUE) to assess the effectiveness of CUE and guide public policies regarding the use of CUE for enhancing safety versus jeopardizing the blood supply by dropping CUE. Study design and methods We conducted a cross-sectional analysis of whole blood donations at a large public blood center in S{\~a}o Paulo from July 2007 through June 2009, compared demographic data, and confirmed serologic results among donors who used and who have never used CUE (CUE never). Results: There were 265,550 whole blood units collected from 181,418 donors from July 2007 through June 2009. A total of 9658 (3.6{\%}) units were discarded, 2973 (1.1{\%}) because CUE was used at the current donation (CUE now) and 6685 (2.5{\%}) because CUE was used in the past (CUE past). The CUE rate was highest among donors with less than 8 years of education (odds ratio [OR], 2.78; 95{\%} confidence interval [CI], 2.51-3.08). CUE now donations were associated with higher positive infectious disease marker rates than CUE never donations (OR, 1.41; CI, 1.13-1.77), whereas CUE past donations were not (OR, 1.04; CI, 0.75-1.45). Cconclusions: The CUE process results in a high rate of unit discard. CUE use on an individual donation appears predictive of a high-risk marker-positive donation and, thus, appears to contribute modestly to blood safety. The policy of discarding units from donors who have previously CUE-positive donations does not improve safety and should be discontinued.",
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T1 - Demographic characteristics and prevalence of serologic markers among blood donors who use confidential unit exclusion (CUE) in São Paulo, Brazil

T2 - Implications for modification of CUE polices in Brazil

AU - De Almeida-Neto, Cesar

AU - Liu, Jing

AU - Wright, David J.

AU - Mendrone-Junior, Alfredo

AU - Takecian, Pedro L.

AU - Sun, Yu

AU - Ferreira, Joao Eduardo

AU - De Alencar Fischer Chamone, Dalton

AU - Busch, Michael P.

AU - Sabino, Ester Cerdeira

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N2 - Background: This study evaluated demographic profiles and prevalence of serologic markers among donors who used confidential unit exclusion (CUE) to assess the effectiveness of CUE and guide public policies regarding the use of CUE for enhancing safety versus jeopardizing the blood supply by dropping CUE. Study design and methods We conducted a cross-sectional analysis of whole blood donations at a large public blood center in São Paulo from July 2007 through June 2009, compared demographic data, and confirmed serologic results among donors who used and who have never used CUE (CUE never). Results: There were 265,550 whole blood units collected from 181,418 donors from July 2007 through June 2009. A total of 9658 (3.6%) units were discarded, 2973 (1.1%) because CUE was used at the current donation (CUE now) and 6685 (2.5%) because CUE was used in the past (CUE past). The CUE rate was highest among donors with less than 8 years of education (odds ratio [OR], 2.78; 95% confidence interval [CI], 2.51-3.08). CUE now donations were associated with higher positive infectious disease marker rates than CUE never donations (OR, 1.41; CI, 1.13-1.77), whereas CUE past donations were not (OR, 1.04; CI, 0.75-1.45). Cconclusions: The CUE process results in a high rate of unit discard. CUE use on an individual donation appears predictive of a high-risk marker-positive donation and, thus, appears to contribute modestly to blood safety. The policy of discarding units from donors who have previously CUE-positive donations does not improve safety and should be discontinued.

AB - Background: This study evaluated demographic profiles and prevalence of serologic markers among donors who used confidential unit exclusion (CUE) to assess the effectiveness of CUE and guide public policies regarding the use of CUE for enhancing safety versus jeopardizing the blood supply by dropping CUE. Study design and methods We conducted a cross-sectional analysis of whole blood donations at a large public blood center in São Paulo from July 2007 through June 2009, compared demographic data, and confirmed serologic results among donors who used and who have never used CUE (CUE never). Results: There were 265,550 whole blood units collected from 181,418 donors from July 2007 through June 2009. A total of 9658 (3.6%) units were discarded, 2973 (1.1%) because CUE was used at the current donation (CUE now) and 6685 (2.5%) because CUE was used in the past (CUE past). The CUE rate was highest among donors with less than 8 years of education (odds ratio [OR], 2.78; 95% confidence interval [CI], 2.51-3.08). CUE now donations were associated with higher positive infectious disease marker rates than CUE never donations (OR, 1.41; CI, 1.13-1.77), whereas CUE past donations were not (OR, 1.04; CI, 0.75-1.45). Cconclusions: The CUE process results in a high rate of unit discard. CUE use on an individual donation appears predictive of a high-risk marker-positive donation and, thus, appears to contribute modestly to blood safety. The policy of discarding units from donors who have previously CUE-positive donations does not improve safety and should be discontinued.

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