RESUMEN
Objective :To explore correlation between severity of coronary artery lesion and risk factors of coronary heart disease (CHD) in CHD patients .Methods :The 452 patients ,who had clinical complete data and underwent coronary angiography in our hospital from Jan 2012 to Jan 2013 were retrospectively analyzed ,including 64 non‐CHD cases (non‐CHD group) and 388 CHD cases (CHD group).Correlation among number ,length ,size ,stenotic degree of diseased coronary artery vessels and CHD risk factors were explored .Results : (1) Compared with non‐CHD group ,there were significant rise in percentages of men ,hypertension (EH) and diabetes mellitus (DM) in CHD group , P＜0.05 or ＜0.01 ; (2) In CHD group ,compared with single vessel coronary disease group ,there were significant rise in age ,percentages of EH ,DM and patients with low HDL‐C in multi‐vessel coronary disease group , P＜0. 05 or ＜ 0. 01 ;compared with large vessel lesion patients ,there were significant rise in age and DM percentage ,and significant reduction in percentage of smokers in small vessel lesion patients , P＜ 0.01 all ;com‐pared with stenosis ＜90% group ,there was significant reduction in LVEF and significant rise in percentage of pa‐tients with elevated LDL‐C level in stenosis≥90% group , P＜0.05 or ＜0. 01 ;(3) Multivariate linear regression a‐nalysis and linear correlation analysis indicated that size of diseased coronary artery vessels was significant inversely correlated with age ( r＝ －0. 181 , P＝0.001) ;severity of coronary disease was significant inversely correlated with LVEF ( r＝ －0.213 , P＝0.001) ,and significant positively correlated with heart rate ( r＝0. 133 , P＝0.009) and LDL‐C level ( r＝0. 141 , P＝0.001).Conclusion :Risk factors for CHD , including aging , smoking , complicated DM , EH , hyperlipidemia , tachycardia and left ventricular systolic dysfunction etc ., will further aggravate coro‐ nary artery lesion .