Gyorkos T W, MacLean J D, Viens P, Chheang C, Kokoskin-Nelson E
Department of Epidemiology and Biostatistics, McGill University, Quebec, Canada.
J Infect Dis. 1992 Aug;166(2):413-7. doi: 10.1093/infdis/166.2.413.
A follow-up prevalence study was done in 1989 of the same Kampuchean refugee population (247 subjects) that had been screened and treated for intestinal parasite infection 6 years earlier. A control group (102 subjects) included Kampuchean refugees who had arrived in Montreal at about the same time. These groups did not differ in age, sex, family size, or number of months spent in refugee camps. Statistically significant prevalence differences were observed in the rescreened group between 1982-1983 (63.7%) and 1989 (21.9%) and between the rescreened group and the control group (39.2%). These differences are largely attributable to the elimination of Ascaris infection and decreases in Giardia and hookworm infections. However, Strongyloides infection decreased only slightly (from 15% to 11%) in the rescreened group, while 12% of the control group was infected. Despite an early screening and treatment program, there remain important health risks in this immigrant population due to long-lived potentially pathogenic parasites.
1989年，对6年前曾接受肠道寄生虫感染筛查和治疗的同一批柬埔寨难民群体（247名受试者）进行了一项随访患病率研究。一个对照组（102名受试者）包括大约在同一时间抵达蒙特利尔的柬埔寨难民。这些群体在年龄、性别、家庭规模或在难民营度过的月数方面没有差异。在重新筛查的群体中，观察到1982 - 1983年（63.7%）和1989年（21.9%）之间以及重新筛查的群体与对照组（39.2%）之间存在统计学上显著的患病率差异。这些差异很大程度上归因于蛔虫感染的消除以及贾第虫和钩虫感染的减少。然而，重新筛查的群体中粪类圆线虫感染仅略有下降（从15%降至11%），而对照组中有12%受到感染。尽管有早期筛查和治疗计划，但由于长期存在的潜在致病寄生虫，这一移民群体仍然存在重要的健康风险。
