A Study of Bioodstasis Symptoms and Physical Signs Based on Latent Structure Models
基于隐结构模型的血瘀证症状体征研究

Latent variable analysis is a widely used statistical method.Standardized and objective study of bloodstasis syn- drome calls for a more sophisticated approach.Latent variable analysis makes a right method for such study.In the pa- per,bloodstasis syndrome is selected as the study objective.An extensive epidemiological survey is conducted in line with the principle of evidence-based medicine.Some 2004 questionnaires concerning bloodstasis symptoms and physi- cal signs are collected,and a Latent Structure Model is established to analyze the data.The model results are interpreted using TCM theory.The study suggests that Latent Structure Model is desirable for differentiating symptoms and signs, which creates a scientific ground the further development of TCM.