Factors contributing to the high prevalence of multidrug-resistant tuberculosis among previously treated patients: a case-control study from China.

SETTING Multidrug-resistant tuberculosis (MDR-TB) has emerged as a serious global public health problem. In China, the risk factors for MDR-TB have not been systematically evaluated. OBJECTIVE To identify risk factors associated with MDR-TB among previously treated patients in China. DESIGN A case-control study was carried out. Cases were selected from… CONTINUE READING