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

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

Variables	Gene expert result
	M. tuberculosis		AOR (95% CI)	P value
	Detected	Not detected	AOR (95% CI)	P value
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

MTB M. tuberculosis, RIF rifampicin, AOR adjusted odds ratio
^aReference category, Hosmer–Lemeshow test = 0.92, Pearson Chi-square = 2.55, classification table = 77.4

ISSN: 1756-0500