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目的分析体质指数(body mass index,BMI)与献血反应之间的关系,以指导合理采血,预防和减少献血不良反应的发生,保障献血者的安全。方法调查2010年6～11月在成都市血液中心同一辆流动采血车上志愿无偿献血的6 577人次,对BMI与献血反应的发生率之间的关系进行分析。结果去除了献血量影响后,BMI<20组与20≤BMI组献血反应发生率差异有统计学意义(将献血量作为分层变量,分层χ2MH=12.100,P<0.01)。调整了献血量后BMI的综合ORMH=0.600,20≤BMI的献血者出现献血反应的比率为BMI<20的献血者的0.6倍。结论 BMI与献血反应发生率有关,不同BMI献血者献血反应率有差别,BMI<20组反应率较高。
Objective To analyze the relationship between body mass index (BMI) and blood donation response to guide the rational blood collection, prevent and reduce the occurrence of adverse reactions of blood donation, and ensure the safety of blood donors. Methods A total of 6 577 volunteer volunteer blood donations from the same blood collection vehicle in Chengdu Blood Center from June to November in 2010 were analyzed to analyze the relationship between BMI and the incidence of blood donation. Results There was a significant difference in the incidence of blood reaction between BMI <20 and 20≤BMI after blood donation was removed (stratification, χ2MH = 12.100, P <0.01). Blood donors who adjusted their blood donation had 0.6 times more blood donors who had a combined ORMH of 0.600 and 20 ≤ BMI than those who had a BMI of <20. Conclusions BMI is related to the incidence of blood donation reaction. There is a difference in blood donation response rates among different BMI donors, and the response rate of BMI <20 is higher.