Prevalence Of Opisthorchis Viverrini Infection And Risk Behaviors Of Opisthorchis Viverrini For Prevention And Control Of Opisthorchis Viverrini And Cholangiocarcinoma In Loei Province, 2013

Abstract

A liver fluke, Opisthorchis viverrini (OV), is a serious health problem of Northeast, Thailand.  O. viverrini infection is the major etiology of cholangiocarcinoma. This study is a cross-sectional analytic study, aimed to determine actual levels of O. viverrini infection and behavior for prevention and control of O. viverrini infection  and cholangiocarcinoma.The subjects were chosen  by using 30 Clusters Sampling technique from 14 amphur,Loei province which represent the whole population in Loei.The data collected by questionnaire and stool examination by using method of Modified Kato Kazt. A total of  595  subjects were obtained from 278 males and 317 females, mean age 43 years. Stool examination showed that 15.63% were infected with O. viverrini.Male were infected with O. viverrini by 64.51% and females were infected with O. viverrini by 35.49%,most of age group 50-59 years were infected with O. viverrini by 22.50%.The level of egg  O. viverrini by feces per gram was low by count. The subjects had knowledge  abouth opisthorchiasis and cholangiocarcinoma in low level (46.90%),not knowing how to take praziquantel correctly and   not knowing side effect of medicine 64.70%,56.10% respectively.Behavior of health in subjects about risk,severity and useful of curess and prevention  in infected with O. viverrini in mild level.The subjects remained eating raw freshwater fish and food that cause of cholangiocarcinoma (52.60%,93.78%). The people still enjoy eating raw fish : spicy fish and koi fish (12.40%, 10.90%).Risk behavior of  opsisthorchis viverrini  for prevention and control of opsisthorchis viverrini  refer to eat raw pickled fish and preserved fish  (OR.=5.36,95%CI.=2.54:11.29 and OR.=2.96,95%CI.=1.98:8.92). Therefore, encouraging people to avoid health risk behavior should be undertaken more in Loei province  and supporting local communities to find ways to change eating behaviors.