Abstract：Objective To know the incidence rates of complete left bundle branch block and right bundle branch block for different genders and ages. MethodsThis paper analyzed 108 610 cases of routine electrocardiogram results and statistically compared the incidence rates of complete left bundle branch block and right bundle branch block for different genders and ages. ResultsAmong the 108 610 outpatients and inpatients, there were 19 cases with complete left bundle branch block, accounting for 0.18% and 3 794 cases with right bundle branch block, accounting for 3.49%. As the incidence rates of complete left bundle branch block were concerned, there was no statistically significant difference between different genders(χ2=1.707, P=0.191) while statistically significant difference existed between different ages(χ2=209.874, P<0.05). For the incidence rates of right bundle branch block, there was statistically significant difference both between different genders and ages(χ2=986.046, P<0.05; χ2=1483.286，P<0.05). ConclusionSince the incidence rates of complete left bundle branch block and right bundle branch block are high in the elderly over 60 years old, regular routine electrocardiogram inspection is a must in order to discover abnormal situation in time and take corresponding measures.
2014, Vol. 23 
