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. Author manuscript; available in PMC: 2015 Sep 22.
Published in final edited form as: Clin Infect Dis. 2013 Jul 9;57(8):1081–1093. doi: 10.1093/cid/cit452

Table 3.

Independent predictors of PZA resistance in M. tuberculosis cases in multivariable regression analysis (N=27,428)

Adjusted prevalence ratio (95% CI)
Characteristic PZA-mono-R
vs. Drug
susceptible
PZA-poly-R
vs. Drug
susceptible
PZA-R/MDR
vs. PZA-S/MDR
Age group 0-24 - 0.53 (0.26-1.09) -
25-44 - 1.00 -
45+ - 0.55 (0.35-0.84) -

Race/ethnicity Hispanic 0.95 (0.59-1.53) 1.12 (0.41-3.09) -
Asian 1.79 (1.18-2.70) 3.70 (1.49-9.22) -
Black 0.91 (0.56-1.48) 2.02 (0.75-5.47) -
White/Other 1.00 1.00 -

Foreign-born Yes - 2.37 (1.24-4.70) 0.72 (0.55-0.93)
No - 1.00 1.00

Previous TB diagnosis Yes - 2.42 (1.24-4.70) -
No - 1.00 -

Site of TB disease EPTB 1.42 (1.02-1.99) - 0.97 (0.66-1.43)
EPTB&PTB 1.24 (0.80-1.92) - 0.60 (0.34-1.05)
PTB 1.00 - 1.00

Note. R=resistant. S=susceptible