关键词: 超重, 肥胖, 运动, 痰湿体质, 影响因素分析, 交互作用

Abstract: Objective　To investigate the relationships of overweight/obesity，exercise，and their interaction with phlegm-dampness constitution in normal adults.Methods　The physical examination data of the Beijing part during March 2015 to May 2016 were collected from the Systematic Survey of TCM Pulse Diagnosis Physiological Parameters in Normal Adult Populations with Different Constitutions Database.In Beijing，after excluding those with missing variables and very low body weight（BMI<18.5 kg/m2），970 eligible individuals were included.Of them，262 cases（27.0%） with the highest scores of Phlegm Dampness Constitution Subscale（PDCS），a subscale of the TCM Physical Constitution Scale，and 262 cases（27.0%） with the lowest scores of PDCS were assigned to high score group and low score group，respectively.Logistic regression analysis was used to analyze the impacts of overweight/obesity，exercise and their interaction on phlegm-dampness constitution after adjusting for the confounding factors of gender，age，education level，smoking preference and drinking preference.Results　Multivariate Logistic regression analysis showed that both overweight〔OR=1.981，95%CI（1.275，3.079），P<0.05〕and obesity〔OR=4.032，95%CI（1.985，8.190），P<0.05〕 increased the risk of having higher scores of PDCS，but exercise habits had no effect on the scores of PDCS（P>0.05）.When considered overweight/obesity and exercise habits as stratified factors，Logistic regression analysis demonstrated that individuals without overweight/obesity and exercise habits〔OR=2.735，95%CI（1.644，4.551），P<0.05〕and those with overweight/obesity but without exercise habits〔OR=2.154，95%CI（1.168，3.976），P<0.05〕had higher risk of having higher scores of PDCS than those with exercise habits but without overweight/obesity.Multiplicative and additive interaction analyses showed that there were no obvious interactions between overweight/obesity and exercise.Conclusion　Overweight/obesity and lack of exercise increase the possibility of having phlegm-dampness constitution，although there is no obvious interaction between the two.Exercise and weight management help to improve phlegm-dampness constitution.

Key words: Overweight, Obesity, Exercise, Phlegm-damp constitution, Root cause analysis, Interaction