Table 5. Adjusted hazard ratios, regression coefficients (β), and point score from the multivariable Cox proportional hazard model in the derivation group in patients with multidrug-resistant tuberculosis, from Hunan Chest and Gondar University Hospitals, 2010–2014.

Risk factors	Adjusted Hazard Ratio (95% CI)	β-coefficient	P value	Points
History of second-line TB treatment	1.7 (1.1–3.2)	0.5	0.04	2
Resistance to fluoroquinolones	2.5 (1.3–4.9)	0.9	0.007	3
Smear did not convert at two months	3.0 (1.7–5.3)	1.1	<0.001	4