BACKGROUND & AIMS:
:A pilot study was undertaken in the UK in February 2005 to identify the perceptions of risk, effectiveness and ethicality of different hypothetical transfusion options, including blood substitutes derived from different sources, among young adults. Forty-nine men and 92 women completed the questionnaire, aging between 18 and 25 years old (mean +/- standard deviation = 19.7 +/- 1.2 years). Twenty-three percent of respondents had donated blood, an average of 3.1 times. The study assessed the perceptions of donor blood versus 3 different types of potential "artificial blood" [i.e. "chemical" (synthetic), "grown from bacteria" (recombinant hemoglobin), or "based on cow blood" (bovine hemoglobin)] on three dimensions, namely risk, effectiveness, and ethicality, each scored on a 1 (least) to 7 (most) Likert-type scale. Donor blood was rated as significantly (P < 0.05) less risky, more effective and more ethical than any of the blood substitutes. The chemical-based blood substitute was rated second least risky, second most effective and second most ethical followed by bacteria grown substitute. The bovine-based blood substitute was rated as significantly riskier, least effective and least ethical. All the blood products differed significantly for perceived ethicality, with donor blood considered as most ethical and a blood substitute derived from bovine blood as least ethical. Judgments of risk correlated negatively with effectiveness (all transfusion options) and ethicality (all the blood substitutes). Overall, these results indicate that donor blood is currently preferred over blood substitutes in the UK and that judgments of risk about different hypothetical transfusion options are related to perceptions of effectiveness and ethicality.
背景与目标:
:2005年2月在英国进行了一项试点研究,以识别年轻人中不同的假设性输血选择(包括来自不同来源的血液替代品)的风险,有效性和道德观念。问卷中有49位男性和92位女性,年龄在18至25岁之间(平均/标准差= 19.7 /-1.2岁)。 23%的受访者献血,平均为3.1倍。这项研究评估了供血与3种不同类型的潜在“人工血”的认知度。 “化学”(合成),“从细菌中生长”(重组血红蛋白)或“基于牛血”(牛血红蛋白)]在三个方面进行评估,即风险,有效性和道德标准,每个方面的得分为1(最低)至7(最)李克特式量表。与其他血液替代品相比,献血者的危险性,有效性和道德性均显着降低(P <0.05)。基于化学的血液替代品被评为风险第二低,第二有效和伦理第二高,其次是细菌替代品。以牛为基础的血液替代品被评为具有较高的危险性,最无效和最不道德的标准。所有血液产品在伦理道德上都存在显着差异,其中捐献者血液被认为是最道德的,而从牛血液中获得的血液替代品则被认为是最不道德的。风险判断与有效性(所有输血选择)和道德(所有血液替代品)负相关。总体而言,这些结果表明,在英国,目前供血者的血液优先于血液替代品,并且关于不同的假设输血选择的风险判断与对有效性和道德的看法有关。