BACKGROUND: The donor health assessment questionnaire (DHAQ) plays an important role in ensuring blood safety. The Canadian DHAQ has been developed over many years on an ad hoc basis and has never been evaluated in light of cognitive science principles. In addition, donor attitudes about its mode of administration have not been assessed. STUDY DESIGN AND METHODS: Between May and August 2005, a total of 456 donors participated in the study by completing the DHAQ, followed by a short, scripted interview assessing recall (as an indicator of attention to the questions) of 17 specific items queried on the DHAQ and attitudes toward interviewer or self-administration of the DHAQ. RESULTS: Overall, 7.5 percent of donors were able to correctly identify all 17 items. Recall was best for questions asked as individual items (87%-99%) and decreased substantially for items that are part of a list (55%-91%). Position effects were demonstrated, with items at the end of a list being the most frequently forgotten. Twenty percent of repeat donors favored the current practice of interviewer administration of high-risk questions, whereas 80 percent were neutral or favored self-administration. CONCLUSION: The current format of the Canadian DHAQ is not optimal for donor attention to specific questions asked as part of a list. The majority of repeat donors are ready for a change in the method of administration of the DHAQ. Studies on donor recall may help guide evidence-based changes to the DHAQ.
BACKGROUND: The donor health assessment questionnaire (DHAQ) plays an important role in ensuring blood safety. The Canadian DHAQ has been developed over many years on an ad hoc basis and has never been evaluated in light of cognitive science principles. In addition, donor attitudes about its mode of administration have not been assessed. STUDY DESIGN AND METHODS: Between May and August 2005, a total of 456 donors participated in the study by completing the DHAQ, followed by a short, scripted interview assessing recall (as an indicator of attention to the questions) of 17 specific items queried on the DHAQ and attitudes toward interviewer or self-administration of the DHAQ. RESULTS: Overall, 7.5 percent of donors were able to correctly identify all 17 items. Recall was best for questions asked as individual items (87%-99%) and decreased substantially for items that are part of a list (55%-91%). Position effects were demonstrated, with items at the end of a list being the most frequently forgotten. Twenty percent of repeat donors favored the current practice of interviewer administration of high-risk questions, whereas 80 percent were neutral or favored self-administration. CONCLUSION: The current format of the Canadian DHAQ is not optimal for donor attention to specific questions asked as part of a list. The majority of repeat donors are ready for a change in the method of administration of the DHAQ. Studies on donorrecall may help guide evidence-based changes to the DHAQ.
Authors: Claude T Tagny; Georges Ikomey; Françoise Ngo Sack; Celestin Achu; Matthias Ndemanou; Catherine Ninmou; Caroline Gesu; Gilbert Essomba; Alexandra Fongue Simo; Georges Nguefack Tsague; Dora Mbanya; Edward Murphy Journal: Vox Sang Date: 2022-03-17 Impact factor: 2.996
Authors: Julia C Cutts; Brendan Quinn; Clive R Seed; George Kotsiou; Ruth Pearson; Nick Scott; David P Wilson; Mary Ellen Harrod; Lisa Maher; Sharon Caris; Alex J Thompson; Michael Farrell; Joanne Pink; Margaret E Hellard Journal: Transfus Med Hemother Date: 2020-07-23 Impact factor: 3.747