摘要
目的 了解元江流域不同海拔高度 ,不同人群中的疟疾流行程度和感染疟疾的相对危险度。 方法 采用寄生虫学和血清学相结合的方法开展横断面调查 ,对资料进行层分析。 结果 间接荧光抗体实验 (IFAT)结果显示 ,1)以低海拔地区的本地居民为对照 ,来自区外的流动人口 ,来自中海拔和高海拔地区的下坝生产人员感染疟疾的相对危险度 (RR)分别是 4.46( 95 %CI :3.44～ 5 .78) ,8.38( 95 %CI :6.41～ 10 .92 )和 6.31( 95 %CI:4.92～ 8.90 ) ;2 )以年龄<15岁为对照 ,中高海拔地区 ,≥ 15岁劳动力年龄组的RR是 2 .76( 95 %CI :2 .40～ 3.81) ;3)带虫率分析显示 ,与当地居民相比 ,低海拔地区打临工者的RR是 2 0 .64( 95 %CI :4.76～ 89.5 9)。 结论 在该地区 ,疟疾的传播依然严重 ,并主要发生在低海拔地区 ;
Objective To investigate malaria prevalence and infection risks among different populations at different altitudes in Yuanjiang River Basin. Methods A cross-sectional survey of malaria prevalence was performed with parasitological and serological methods. The data were analyzed by stratification. Results 1) Taking permanent residents at low altitude as the reference,the risk ratios (RR) were 4.46(95%CI:3.44～5.78),8.38(95%CI:6.41～10.92) and 6.31(95%CI:4.92～8.09)respectively for mobile population from other aras,residents who live at middle altitude and those who live at high altitude but seasonally left their home for farm work at low altitude;2) Among residernts living in middle-high altitude,taking the<15 year-old age group as the reference,the RR was 2.76 (95%CI:2.40～3.81)for labor age group of 15～60 years old;3) The RR was 20.64(95%CI:4.76～89.59)for casual workers who had not shelters and stayed overight outdoor. Conclusion Malaria transmission is still serious and primarily occurs at the low altitude areas,and people's staying overnight at the field and lack of personally protective measures are risk factors of malaria infection the region.
出处
《中国热带医学》
CAS
2003年第3期303-305,共3页
China Tropical Medicine
关键词
云南
元江流域
疟疾
流行病学
调查
Malaria
Yuanjiang River Basin
Cross-sectional survey
Risk ratio.
