. 2018 Jul 12;76:45. doi: 10.1186/s13690-018-0287-z

Table 2.

Interaction between alcohol disorder and illicit drug use on the risk of unsuccessful tuberculosis treatment outcome, São Paulo-state, Brazil, 2011–2015

	Non-illicit drug use		Illicit drug use		RRs (95% CI)^a for illicit drug within strata of alcohol
	No. of unsuccessful outcome/successful outcome	RR (95% CI)^a	No. of unsuccessful outcome/successful outcome	RR (95% CI)^a	RRs (95% CI)^a for illicit drug within strata of alcohol
Non-alcohol disorder	8607/51500		1472/3727
Non-alcohol disorder		1		2.1 (1.98–2.21) P < 0.001	2.1 (1.98–2.21) P < 0.001
Alcohol disorder	1765/5722		1456/2962
Alcohol disorder		1.48 (1.4–1.56) P < 0.001		2.09 (1.97–2.21) P < 0.001	1.41 (1.31–1.51) P < 0.001
RRs (95% CI)^a for alcohol within strata of illicit drug		1.48 (1.4–1.56) P < 0.001		1.00 (0.93–1.06) P = 0.90

RR relative risk, 95% CI 95% confidence interval

^aAdjusted for sex, age, race, HIV, clinical form of TB, prison, homeless and directly observed treatment