藐小棘隙吸虫流行病学研究 Ⅲ.饮水与藐小棘隙吸虫感染的前瞻性定群研究

本文以前瞻性定群研究,报道了饮水与藐小棘隙吸虫感染的关系。结果表明:1.陈桥洲居民藐小棘隙吸虫年感染率为11.23%;2.饮用塘水和混饮江、塘水者感染藐小棘隙吸虫的相对危险度(RR)分别是饮江水者的3.72倍和4.28倍;3.饮生水人群的 RR 是非饮生水者的8.12倍,且分层分析后上述关系仍然成立;4.感染率与饮生水量呈剂量反应关系;5.其它寄生虫未见上述联系;6.当地人群特异危险度(PAR)及特异危险度百分比(PAR%)分别为9.43%和83.97%。结果提示生饮塘水为当地居民感染藐小棘隙吸虫的主要途径。

AN EPIDEMIOLOGICAL STUDY ON ECHINOCHASMUS LILIPATANUS INFECTIOM 3.prospective cohort study on the driking water and Echinochamus lilipatanus infection

This paper reports the relationship between the driking water and Echinochamus liliputanus (EL) infection by using the method of prospective cohort study.The results as follows:1.the morbidity rate of human infected with EL was 11.23%.in Chenqiaozhou village Hexian county Anhui Province.2.Relative risk (RR) of people infected with EL were 2.72 and 3.28 times higher in the population driking water from both-pond and the Yangtze River than that only from the Yangtze River respectively.3.RR was 7.12 times higher in the population driking raw water than that in the population not driking raw water,this association persisted even after stratified analysis.4.Dose response relationship was found between EL infection and the amount of driking raw water.5.These relationship was not found at the other parasitic diseases in this village.6.for inhabitants in the village PAR was 9 .43% and PARX was 83.97%.The results suggested that in this village the major mode of transmission of EL was driking raw water from pond.