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Table 3 Multivariate analysis showing the associated predictors of M. tuberculosis in DMRH, 2015

From: Rifampicin-resistance pattern of Mycobacterium tuberculosis and associated factors among presumptive tuberculosis patients referred to Debre Markos Referral Hospital, Ethiopia: a cross-sectional study

Variables Gene expert result
M. tuberculosis AOR (95% CI) P value
Detected Not detected
Residence
 Urban 57 225 1.35 (0.86–2.13) 0.19
 Rural 60 163   a
Sex
 Male 74 191 2.17 (1.35–3.49) 0.001
 Female 43 197   a
Age, years
 ≤10 9 29 3.2 (1.23–8.21) 0.02
 11–17 7 17 3.3 (1.08–10.08) 0.036
 18–30 46 88 4.6 (1.63–12.71) 0.004
 31–40 25 109 2.76 (0.77–9.91) 0.12
 41–50 15 82 1.1 (0.46–2.70) 0.82
 51–60 9 41 1.2 (0.36–4.02) 0.77
 61–92 6 22   a
HIV infection
 Positive 30 153 1.36 (0.80–2.3) 0.25
 Negative 87 235 a a
Reason for examination
 Presumptive TB 48 269 a a
 Presumptive DR TB 69 119 6.83 (3.55–13.15) <0.001
Treatment history with anti-TB drugs
 Previously treated 41 91 2.02 (1.03–3.96) 0.04
 Previously untreated 76 297   a
Site of TB infection
 Pulmonary 64 259 2.19 (1.36–3.51) 0.001
 Extra-pulmonary 53 129   
  1. MTB M. tuberculosis, RIF rifampicin, AOR adjusted odds ratio
  2. aReference category, Hosmer–Lemeshow test = 0.92, Pearson Chi-square = 2.55, classification table = 77.4