Table 2. Multidrug-Resistance Pulmonary Tuberculosis (MDR-TB) Score.

Variable	Regression Coefficients (95% BCa CI)	Points
Risk factors
History of tuberculosis*	2·78 (1·98 to 3·49)	3
MDR-TB contact, family	1·27 (0·34 to 2·15)	2
Physical exam
Abnormal lung exam	−0·82 (−1·57 to −0·12)	−1
Chest radiograph pattern
Cavitary	0·93 (0·14 to 1·66)	1

BCa  =  Bias-Corrected and accelerated, CI: confidence interval.

*Failed therapy or early relapse within 12 months.