【摘要】 １９８８—１９９０年及１９９２年８—１２月，采用改良加藤法先后在西藏４地、市对５—２０岁儿童、青少年４９１０人进行了肠道蠕虫感染情况的调查。其中，粪检在校中、小学生２４３９人和社会上儿童与青少年（５－２０岁）人群２４７１人，分别查见蠕虫感染者１０１３例和４１６例，其感染率分别为４１．５％和１６．８％。经χ２检验，两者间差别具有极显著意义（χ２＝３６２．８７５６，Ｐ＜０．００１）。本次共查见肠道蠕虫１１种，上述两组人群主要５种寄生虫感染率分别为：蛔虫３１．８％和１０．４％、鞭虫１３．５％和３．９％、带绦虫３．４％和６．６％、钩虫１．０％和０．４％、蛲虫０．２％和０．３％。结果表明；在校学生和社会上５—２０岁人群中蠕虫感染率间差别具有极显著意义，地理环境、生活习惯、年龄及民族是影响儿童、青少年感染肠道蠕虫的重要因素。更多还原

【Abstract】 A survey of intestinal helminthic infections in children and juveniles aged 5-20 years was carried out in Xizang in the years of 1988-1990 and 1992. The examinees included 2 439 pupils and middle school students (A) and 2 471 others (B) in the communities. The number of people infected with intestinal helminths were found to be 1 013 in group A and 416 in group B, showing overall infection rates of 41.5% and 16.8%, respectively, very significant difference was revealed (χ 2=362.8756, P <0.001). Statistical differences in infection rates of Ascaris lumbricoides, Trichuris trichiura, Taenia sp., hookworm and Enterobius vermicularis between the two groups were particularly noted (Abstractor: the picture is likely due to the difference in age range). Topography, nationality, habits and age were consi dered to have relevance to the prevalence of intestinal helminthiasis.更多还原