Table 3. Multivariate analysis of risk factors for drug-resistant tuberculosis (TB) in re-treated TB cases.

	Drug-resistant TB*	Multidrug-resistant TB †
Characteristics	Adjusted odds ratio (95% CI)	Adjusted odds ratio (95% CI)
Retired/unemployed	1.382 (0.640–2.984)	1.333 (0.815–2.178)
High school or above	1.011 (0.482–2.119)	2.922 (1.200–7.114)
Annual income >20,000 yuan	1.624 (0.788–3.347)	2.107 (1.025–4.333)
TB hospital	1.071 (0.652–1.758)	0.613 (0.125–3.002)
General hospital	0.692 (0.445–1.077)	0.602 (0.322–1.125)
Family	1.309 (0.834–2.055)	0.739 (0.411–1.332)

*Drug-resistant TB is tuberculosis with drug resistance to any antituberculosis drugs in the survey.

^† Multidrug-resistant TB is tuberculosis with resistance to both isoniazid and rifampin.