Study On Food Borne Parasite Infection And The Influencing Factors In Guangxi Minority Rural Areas

Objective: To investigate the status of foodborne parasite infection in minority rural areas of Guangxi,and to study and analyze the individual dietary behavior factors of foodborne parasite infection.population distribution of family factors,natural village factors and individual dietary high-risk behaviors.The purpose of this study is to provide a basis for the formulation of targeted foodborne parasite control strategies in minority rural areas of Guangxi.Methods: The survey subjects were obtained by multi-stage sampling method of stratified and cluster sampling,and the household survey was conducted with self-made “personal situation questionnaire of residents”,“Family situation questionnaire” and “Natural Village situation questionnaire”.Face-to-face interviews were conducted with the subjects,and their personal situation,family situation and natural village situation were collected.Fecal samples were collected from all subjects,and the eggs of common foodborne parasites in the intestines were detected by modified Kato thick smear method,and the cysts and trophozoites of foodborne parasites were examined by saline and iodine solution direct smear method.transparent tape anal swab method was used to detect pinworm infection in children under 7 years old.Use Epidata3.1 to establish database,double input and check,and use SPSS22.0 to analyze the data.The main statistical methods are descriptive statistics,?~2 test and Logistic regression analysis.The test level is ? = 0.05.Results: ? A total of 4008 questionnaires were sent out in this survey,with a recovery rate of 99.68% and an effective questionnaire rate of 81.44%.Among the 3264 effective subjects,263 were positive for foodborne parasitology,with a total infection rate of 8.1%.Seven common foodborne parasites were found,namely,Clonorchis sinensis,Blastocystis hominis,Ascaris lumbricoides,Ancylostoma,hookworm,Trichuris and Taenia saginata.The infection rates were 4.4%(145/3264),1.3%(42/3264),0.9%(31/3264),0.8%(25/3264),0.5%(152/3264),0.3%(9/3264)and 0.0%(1/3264),respectively.?There were differences in the infection rate of foodborne parasites among different ethnic groups and different areas(P < 0.05).The infection rate of foodborne parasites in Zhuang ethnic group(21.6%)was higher than that in other ethnic groups.The infection rate of foodborne parasites in Wuming County,Nanning(42.5%)was higher than that in other areas.?Multivariate analysis showed that residents who ate raw or half-cooked fish,shrimp and crabs were 11 times more likely to be infected with foodborne parasites than those who did not eat.Those who did not wash their hands frequently after defecation were twice as likely to be infected with foodborne parasites as those who regularly washed their hands,and those who defecated infrequently in the household toilet were 3 times more likely to be infected with foodborne parasites than those who often defecated in the household toilet(P < 0.05).?Multivariate analysis of family factors showed that those who ate raw or half-cooked fish,shrimp,crabs and other habits in the family were 6 times more likely to be infected with foodborne parasites than those who did not eat raw or half-cooked fish,shrimp,crabs,etc.,and those who did not have boiling water equipment were 3 times more likely to be infected with foodborne parasites than those who had boiled water equipment.Household utensils for handling raw and cooked food without separation of users were twice as likely to be infected with foodborne parasites as separate users,and those who did not have plastic wrap or plastic bags were twice as likely to be infected with foodborne parasites as those who had plastic wrap or plastic bags(P < 0.05).?Multivariate analysis of natural village factors showed that the risk of foodborne parasites infected by sanitary residents in natural villages was 6 times higher than that in natural villages.People without public water supply system in natural villages were twice as likely to be infected with foodborne parasites as those who had public water supply systems in natural villages.Those who had the custom of eating raw vegetables in natural villages were twice as likely to be infected with foodborne parasites as those who did not eat raw vegetables in natural villages.People who ate raw or half-cooked fish,shrimp,crabs and other customs in natural villages were 4 times more likely to be infected with foodborne parasites than those who did not eat raw or half-cooked fish,shrimp and crabs(P < 0.05).?The rates of high risk factors of foodborne parasite infection were different among residents of different genders,ethnicity and education levels(P < 0.05).Conclusions: The the infection rate of foodborne parasites in rural areas of ethnic minorities in Guangxi is high,and the infection rate of foodborne parasites in raw or half-cooked fish,shrimp and crabs after defecation is not often washed and defecated in family toilets are important factors causing foodborne parasite infection.The family has the habit of eating raw or half-cooked fish,shrimp and crabs,the family does not have the equipment to boil water,the household utensils for handling raw food and cooked food are not separated,and the family does not have cling film or plastic bags are the important factors of foodborne parasite infection.There is no village health center in the natural village,there is no public water supply system in the natural village,and the customs of eating raw vegetables and eating raw or half-cooked fish,shrimp and crabs are important factors of foodborne parasite infection.Male,Zhuang,Dong and low-educated people have a higher incidence of risk factors.