| A comparison of self-reported and record-linked blood donation history in an Australian cohort. | |
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MedLine Citation:
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PMID: 21985049 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND: Questionnaire-based studies investigating blood donation history rely on the accurate recall of information from participants for results to be valid. This study aimed to retrieve electronic records from a national blood donation service and link them to self-reported history of donation to assess agreement between the two sources. STUDY DESIGN AND METHODS: Between 2004 and 2006, a sample of participants of northern European descent was selected from the Melbourne Collaborative Cohort Study (n = 31,192) to participate in the "HealthIron" study (n = 1438). A total of 1052 participants completed questionnaires that included questions about blood donation history. In 2009, consenting participants' records were linked to the Australian Red Cross Blood Service (ARCBS) to provide information on blood donations made between 1980 and follow-up (2004-2006). Those who commenced blood donation before 1980 were excluded. RESULTS: A total of 718 participants were available for analysis. Of these, 394 (55%) provided signed consent, including 182 (82%) of the 227 participants who self-reported ever donating blood. The two data sources were concordant for 331 (87%) of participants, with a κ statistic of 0.74 (SE, 0.05) indicating a high level of agreement. Participants tended to overstate by a factor of 2.0 (95% confidence interval, 1.7-2.2) the number of donations they had made when compared with ARCBS records. CONCLUSION: Participants in studies assessing self-reported blood donation history are likely to correctly indicate whether or not they have ever donated blood. Quantitative estimates are potentially inaccurate and could benefit from validating a sample of records to quantify the bias. |
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Authors:
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Nadine A Bertalli; Katrina J Allen; Christine E McLaren; Lidija Turkovic; Nicholas J Osborne; Clare C Constantine; Martin B Delatycki; Dallas R English; Graham G Giles; John L Hopper; Gregory J Anderson; John K Olynyk; Lawrie W Powell; Lyle C Gurrin; |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-19 |
Journal Detail:
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Title: Transfusion Volume: 51 ISSN: 1537-2995 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0417360 Medline TA: Transfusion Country: - |
Other Details:
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Languages: ENG Pagination: 2189-2198 Citation Subset: - |
Copyright Information:
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© 2011 American Association of Blood Banks. |
Affiliation:
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From the Centre for MEGA Epidemiology, School of Population Health, The University of Melbourne; Murdoch Childrens Research Institute; and the Departments of Paediatrics and Gastroenterology, Royal Children's Hospital, Melbourne, Australia; the Department of Epidemiology, University of California, Irvine, California; Austin Health, and Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, Australia; the Queensland Institute of Medical Research, and the University of Queensland, Brisbane, Australia; the Department of Gastroenterology, Fremantle Hospital, Fremantle, Australia; the School of Medicine and Pharmacology, University of Western Australia; the Western Australian Institute of Medical Research; and the Curtin Health Innovation Research Institute, Perth, Australia; and the University of Queensland and the Royal Brisbane and Women's Hospital, Brisbane, Australia. |
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