Clustering proportion between the MTB isolates with different drug-resistant pattern and genetic mutation (<i>n</i> = 223).

Note: INH,isoniazid; RIF,rifampicin; STR, streptomycin; EMB, ethambutol. acOR: crude odds ratio were calculated by comparing the clustering proportion between drug- resistant MTB isolate and drug-susceptible isolate in binary logistic regression model. baOR: adjusted odds ratio and 95%CI were calculated by comparing the clustering proportion between drug-resistant TB isolate and drug-susceptible isolate, adjusted by age, sex, and counties of the subjects in a binary logistic regression model. cp<0.05.