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背景 人们认为用患者熟悉的人捐献的血液较血站的血液安全,多数美国血站开展了指定供血。几乎没有数据支持指定供血能提高安全性,反而有数据表明在指定供血中病毒的流行率较高。方法 根据美国5个大的血液中心的捐献全血(WB)的献血和实验记录,作者比较了每年的指定供血与普通WB的比例(1991年-1998年)、这些献血者的人口统计学和传染病标志物的血清学流行率。结果 在1991～1998年期间,在5个血液中
Background It is believed that blood donated by people who are familiar with the patient is blood-safer than blood banks, and most U.S. blood stations carry out designated blood supply. There is little data to support the nomination of blood to improve safety, but instead data indicate a higher prevalence of the virus in designated blood donations. Methods Based on donor blood donations and experimental records of donated whole blood (WB) from five major blood centers in the United States, the authors compared yearly annual rates of designated and general WB (1991-1998) with the demographics of these donors Serological prevalence of infectious disease markers. The results were from 1991 to 1998 in five blood samples