Translation into Portuguese and validation of the Blood Donation Reactions Inventory

Abstract

Backgroundthe Blood Donation Reactions Inventory (BDRI) scale was proposed as part of a study about the predictors of psychological reactions in volunteer blood donors, as uncomfortable reactions are associated with a lower probability to return for further donations.Objectiveto translate the Inventory into Brazilian Portuguese and evaluate its psychometric properties (validity and reliability). The inventory has 11 items, but the literature suggests that shorter inventories, of four or six items, should be used.Methodsthis study was carried out at the blood center of Franca, Brazil. Three people with knowledge of English and familiarity with medical terms translated the Blood. Donation Reactions Inventory into Brazilian Portuguese. Aiming to evaluate the objectivity and relevance of the items of the translated instrument, its content was independently evaluated by a panel of eight assessors. After this, data on 1,001 blood donors was collected. Internal consistency was assessed by Cronbach’s alpha coefficient. An exploratory factor analysis with varimax rotation was used to analyze the measure for construct validity.Resultsthe sample consisted of 65.8% men, and 27.3% first time donors. Internal consistency determined by Cronbach’s alpha coefficient was satisfactory for the 11, 6 and 4-item scales. Considering the factor analysis, the 11-item scale seems to measure more than one construct as three factors were identified with eigenvalues greater than 1. These factors correspond to ‘vasovagal adverse reactions’, ‘fear’ ‘anxiety/excitation’.Conclusionthe Portuguese version of the Blood Donation Reactions Inventory is a valid and reliable instrument for collecting information regarding systemic reactions experienced by blood donors. The 6-item scale seems to be useful when the objective is to measure only vasovagal adverse reactions.© 2014 Associação Brasileira de Hematologia, Hemoterapia e Terapia Celular. All rights reserved.

Donor Haemovigilance: A South Indian experience

“…However it falls within the usual prevalence of 0.3-4% in various studies. [5][6][7][8][9][10][11][12][13] Every study [11][12][13][14] showed vasovagal reactions to be more frequent than local complications (70-90%) similar to ours (91%). The finding of pre-syncopal symptoms higher than actual syncope / fainting was also comparable with other studies.…”

“…Systemic symptoms of vasovagal nature formed the bulk of donor reactions, of which presyncopal was recorded at 1.33% and true syncope at 0.3%. The overall rate of ADR [5][6][7][8][9][10][11][12][13] is slightly more compared to international studies like Garozzo et al 13 (0.59%) and Crocco et al 13 where the rate was 1.2%, and less than studies in Indian population like Agnihotri N 6 where it was 2.5%. However it falls within the usual prevalence of 0.3-4% in various studies.…”

“…The Blood Donation Reactions Inventory (B.D.R.I) scale is a standardized measure of subjective physiological reactions immediately after blood donation and individual scores can be used to predict chances of repeat donation as well. 8,9 The present study aims at applying this scale to the blood donor population at Govt. Medical College Kozhikode for assessing the prevalence and degree of donor reactions.…”

Adverse reactions to whole blood donation, basic human needs and nursing diagnoses: a reflection

“…The response of the parasympathetic autonomic nervous system implies the need for vascular regulation, as it causes reduced peripheral vascular resistance and heart rate, leading to a reduction in systemic blood pressure and cardiac output, and a consequent reduction in oxygen and nutrient supply (constituting a need for oxygenation and nutrition) to cerebral and peripheral tissues; this reduction is evidenced by dizziness and pallor. Thus, due to a reduction in self-perception and of the surrounding environment being experienced according to reports of dizziness and sometimes "darkened vision" (24) , an imbalance in the need for cerebral oxygenation is also manifested. Therefore, the need for physical integrity is inevitably vulnerable, considering visual changes and dizziness due to reduced cerebral perfusion.…”

Tools to implement and improve blood donor hemovigilance in Brazil**See paper by Braz AC et al. on pages 139-146.

“…Of note, the lack of consistent reporting practices based on common definitions across Brazilian blood banks may contribute to the different rates reported over the country. 8 In this issue of the Revista Brasileira de Hematologia e Hemoterapia, Braz et al 9 present the translation into Brazilian Portuguese and the validation of The Blood Donation Reactions Inventory (BDRI). The BDRI provides an assessment of subjective ratings of presyncopal symptoms that is brief and easily understood by donors, and quick to administer and score.10 The BDRI has 11 items in its full scale, while short scales have 6 or 4 items.…”