| ObjectiveWith the rapid growth of economy in recent years, the supply, utilization and requirements of health service in our country have greatly been changed. And it has become a significant study on the requirements, utilization and their affecting factors of health service. Because of the special policy of Birth control in countryside and the changes of the view of Birth of urban resident, 90 percent of increasing population and 85 percent of aged will dwell in countryside based on the status of population development in 2000. The requirements of health resources will increase unceasingly. So the study on the status of health service about country dweller in Zhejiang province is very important to formulate medicine health project and augment health service management.Correspondence analysis is a descriptive multiple statistical analysis method, based on singular value decomposition principal which is similar to principal component analysis, factor analysis, canonical correlation analysis and multidimensional scaling. The core is that the vector point in high dimension space project to low dimension space, thus it can reveal the correlation relationship and degree between variables. It possesses many virtues such as directness,simpleness, convenience, accurate judgement and decreasing calculating time. So it has been applied extensively in geology, ocean, meteorology, medicine and etc. Our objective is to analyze the relationship between treatment fashion within 2 weeks, disease pattern within 2 weeks, disease pattern of chronic disease and their affecting factors, further to find out whether the correspondence analysis is suitable to health service study and to provide reference criteria for ministry of health to enact policy and ameliorate medical care.Materials and methodsThe data in this study came from the family health survey of Zhejiang Province in 1998. 7200 families from 12 counties (2 town, 10 countryside) were selected by four-stage cluster sampling. The content of the survey was composed of (1) general characteristics of family members; (2) economic and housing conditions and surroundings of the family; (3) health insurance situation and acquirement of health service of family members; (4) circumstance of family members about whether they had illness within 2 weeks and chronic disease within recent six months and whether they went to see doctors.There were few people in urban region in this survey and more 0 values in contingency table, which didn't coincide with the condition of correspondence analysis, so we only analyzed health service status in rural region. Study on the relationship between treatment fashion within 2 weeks and affecting factors such as age, income, education, serious degree of disease, medical facility, health insurance pattern, distance from the family to the health constitution, time spent of walking or riding to health constitution; the relationship between disease pattern within 2 weeks, disease pattern of chronic disease and their affecting factors such as age, income, education, medical facility health insurance pattern. Statistical analysis was performed by simple correspondence analysis and multi-correspondence analysis, using SAS6.12.ResultsThere were significant differences in the relationship between treatment fashion within 2 weeks and affecting factors including age, income, serious degree of disease, medical facility, distance from family to health constitution, time spent of walking or riding to health constitution. The results by correspondence analysis showed that they generally chose to see doctor, who were with age ≥65, high income, serious disease, usually seeing doctor in ambulant clinic or medicine point or private clinic, with distance ≤1km (kilometer), with time≤10 m (minut); People choosing self-medicine usually were with age ≥25 and age <35, minimal or unknown disease, usually seeing doctor in public health center, with distance≥3km, with time ≥30 m; Others chose seeing doctor or self-medicine, usually they chose both.
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