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-alcohol disorder

1

2.1 (1.98–2.21)

P < 0.001

2.1 (1.98–2.21)

P < 0.001

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