本文对美国六个州的15个血透析中心的583例病人和451例医务人员中HBAg·HBAb的流行与诸因素的关系进行了观察,结果如下: 1.HBAg与HBAb流行率的特点:583例病人中HBAg或HBAb阳性259例,流行率为50.6％。451例医务人员中阳性152例,流行率为33.7％。单独HBAb的流行率在两组中各为34.0％及31.3％。单独HBAg的流行率在病人中较高,为12.2％;医务人员中仅为2.2％,两组比较有明显差异。 The relationship between the prevalence of HBAg and HBAb in 583 patients and 451 medical staff at 15 hemodialysis centers in six states of the United States was examined. The results were as follows: 1. The prevalence of HBAg and HBAb was 583 In patients with HBAg or HBAb positive 259 cases, the prevalence was 50.6%. Of the 451 medical staff, 152 were positive, with a prevalence of 33.7%. The prevalence of HbA alone was 34.0% and 31.3% in both groups. The prevalence of HBAg alone was higher in patients, 12.2%; only 2.2% of medical staff, there were significant differences between the two groups.