Study on the quantification of pathogenic factors of wind-hot and hot-wetness cold by extenics multidimentional correlation

Background: To discover the relationship between different etiological factors of wind-hot cold and hot-wetness cold. Methods:We collected clinical data of patients in 5 provinces in china from 2010 to 2011 with wind-hot cold and hot-wetness cold at test plot. We design a questionnaire to find the possible EPFs that patients confronted, including environmental factors, meteorology factors, individual physiology, psychology, and habit factors. Construct database, evaluate the quality of the data, use the way of decision tree to data mining and analyzing. By calculate the information gain to determine the contribution of every factor in the process of invasion, get decision tree, and display the correlativity among the factors. Results:1.income and education levels affect the actions of patients of taking hospital treatment or not; 2.weather factors (average temperature, wetness and temperature) have obvious influence on wind-hot and hot-wetness cold caused by EPFs; 3.the relationship between the occurrence of hot-wetness type of cold and wind force is inverse correlation. Discussion: proper sports could reduce the occurrence of disease caused by exogenous evils; the occurrence of wind-hot and hot-wetness cold were caused by lots of factors; people in middle age are easily to suffer from the cold.