Charles K S, Hughes P, Gadd R, Bodkyn C J, Rodriguez M
National Blood Transfusion Service, 160 Charlotte Street, Port of Spain, Trinidad and Tobago.
Transfus Med. 2010 Feb;20(1):11-4. doi: 10.1111/j.1365-3148.2009.00968.x. Epub 2009 Sep 24.
The majority of blood donations in Trinidad and Tobago are made as replacement by family members or friends. National Blood Transfusion Policy was drafted in 2007 to promote voluntary, repeated donation. The objective of this study is to assess the current rate and reasons for donor deferral, and the aim is to guide the proposed donor education and recruitment programme. A retrospective study of pre-donation deferral of prospective blood donors at the National Blood Transfusion Centre, Port of Spain, Trinidad and Tobago, was conducted. Records of all pre-donation deferrals over a 12-month period were studied. As many as 11,346 pre-donation screening interviews were conducted. There were 4043 (35.6%) deferrals. The most common reasons for donor deferral were exposure to high-risk sexual activity (27.6%), low haemoglobin 22.2% and hypertension 17.5%. Other reasons such as medication, chronic medical illness, tattoos, travel history, recent pregnancy, surgery or presentation outside the accepted age limit caused 33.8% of all deferrals and the majority (34.7%) of male deferrals. Low haemoglobin (44.5%) was the most common reason among females. The rate of deferral of voluntary donors was not significantly different from that for replacement donors (31.7 vs. 35.4%, P = 0.25). This study exposed a lack of public awareness as the principal reason for an unacceptably high rate of donor deferral. Donor education about selection criteria needs to be urgently addressed as an objective of the National Policy. Monitoring and evaluation of deferral rates and reasons could be used as one indicator of the effectiveness of the Policy.
特立尼达和多巴哥的大多数献血是由家庭成员或朋友替代进行的。2007年起草了国家输血政策，以促进自愿、重复献血。本研究的目的是评估当前献血者延期的发生率及原因，旨在指导拟议的献血者教育和招募计划。对特立尼达和多巴哥特立尼达港国家输血中心潜在献血者献血前延期情况进行了一项回顾性研究。研究了12个月内所有献血前延期的记录。共进行了11346次献血前筛查访谈。有4043人（35.6%）被延期。献血者延期的最常见原因是有高危性行为（27.6%）、血红蛋白低（22.2%）和高血压（17.5%）。其他原因，如用药、慢性疾病、纹身、旅行史、近期怀孕、手术或不在规定年龄范围内，导致了所有延期的33.8%以及大多数（34.7%）男性延期。血红蛋白低（44.5%）是女性中最常见的原因。自愿献血者的延期率与替代献血者的延期率无显著差异（31.7%对35.4%，P = 0.25）。本研究表明，公众意识缺乏是献血者延期率高得令人无法接受的主要原因。作为国家政策的一个目标，迫切需要开展关于选择标准的献血者教育。对延期率和原因的监测与评估可作为该政策有效性的一个指标。
