Distribution and Combination Characteristics of Hypertensive Syndrome Elements of TCM

Objective To explore the distribution and combination characteristics of hypertensive syndrome elements of TCM,and to guide TCM differentiation.Methods Based on the requirements of TCM epidemiological investigation of hypertension clinical research,Hypertension Clinical Survey Questionnaire was set up applying in the investigation of hypertensive patients,and also the database of TCM essential elements and syndromes.The hypertensive syndrome elements of TCM were obtained by factor analysis and statistical description.Results Seven common factors were obtained by factor analysis:F1(blood stasis syndrome factor),F2(yang deficiency syndrome factor),F3(phlegm turbidity syndrome factor),F4(hyperactivity of yang syndrome factor),F5(qi deficiency syndrome factor),F6(blood deficiency syndrome factor),F7(yin deficiency syndrome factor).The frequency and proportion of seven syndrome factors from high to low were as follows:blood stasis 51(45.95%) qi deficiency 48(43.24%) yin deficiency 36(32.43%) hyperactivity of yang 31(27.93%) phlegm turbidity 29(26.13%) yang deficiency 28(25.23%) blood deficiency 12(10.81%).Syndrome factor combination:Two syndrome factors combined was the most common,and the proportion was 60.4%(67/111);next was the documents element,account for 21.6%(24/111);the proportion of three syndrome factors combined was 16.2%(18/111);the proportion of four syndrome factors combined was 1.8%(2/111).Conclusion The main hypertensive TCM syndrome factors are blood stasis,qi deficiency and yin deficiency.Syndrome factor combination is that two syndrome factors combined is the most common,among them yin deficiency combined with hyperactivity of yang has the highest proportion.