Assessment of Extrapulmonary Tuberculosis Using Gene Xpert MTB/RIF Assay and Fluorescent Microscopy and Its Risk Factors at Dessie Referral Hospital, Northeast Ethiopia

Table 4

Factors associated with Gene Xpert MTB/RIF assay positivity among presumptive EPTB cases at Dessie Referral Hospital, from March 1 to June 30, 2017.

Variable	Freq	Xpert result		COR (95%CI)	P-value	AOR (95%CI)	p-value
		Negative=n (%)	Positive=n (%)
Age in years
18-30	132	119(90.2)	13(9.8)	ref
31-50	161	147(91.3)	14(8.7)	0.87(0.40-1.93)	0.734
>50	60	56(93.3)	4 (6.7)	0.65(0.20-2.10)	0.475
Sex
Male	185	170(91.9)	15(8.1)	ref
Female	168	152(90.5)	16(9.5)	1.19(0.57-2.49)	0.639
Residence
Urban	171	161(94.2)	10(5.8)	ref
Rural	182	161(88.5)	21(11.5)	2.1(0.95-4.60)	0.064	2.14(0.97-4.71)	0.059
Marital status
Married	262	238(90.8)	24(9.2)	ref
Single	91	84(92.3)	7(7.7)	0.83(0.34-1.99)	0.670
Occupation
House wife	99	88(88.9)	11(11.1)	ref
Merchant	84	79(94.0)	5(6.0)	0.51(0.17-1.52)	0.225
Farmer	93	83(89.2)	10(10.8)	0.96(0.39-2.39)	0.937
Others	77	72(93.5)	5(6.5)	0.56(0.19-1.67)	0.296
Educational Status
Illiterate	143	128(89.5)	15(10.5)	1.84(0.73-4.68)	0.199
Grades 1-8	93	84(90.3)	9(9.7)	1.68(0.60-4.71)	0.320
Grade 9 & above	117	110(94.0)	7(6.0)	ref
Monthly income
<1500 birr	213	191(89.7)	22(10.3)	1.68(0.75-3.76)	0.209
>1500 birr	140	131(93.6)	9(6.4)	ref
Family size
<4	137	125(91.2)	12(8.8)	ref
4 & above	216	197(91.2)	19(8.8)	1.0(0.47-2.14)	0.990
Cigarette Smoking
Yes	27	22(81.5)	5(18.5)	2.6(0.92-7.50)	0.072
No	326	300(92.0)	26(8.0)	ref
Alcohol drinking
Yes	52	45(86.5)	7(13.5)	1.8(0.73-4.41)	0.20
No	301	277(92.0)	24(8.0	ref
Previous PTB
Yes	32	26(81.2)	6(18.8)	2.73(1.03-7.26)	0.044	2.8(1.05-7.54)	0.040
No	321	296(92.2)	25(7.8)	ref
Chronic disease
Yes	173	156(90.2)	17(9.8)	1.29(0.62-2.71)	0.497
No	180	166(92.2)	14(7.8)	ref
Contact with PTB patients
Yes	16	12(75.0)	4(25.0)	3.83(1.16-12.68)	0.028
No	337	310(92.0)	27(8.0	ref
Consumption of raw milk
Yes	52	48(92.3)	4(7.7)	0.86(0.28-2.53)	0.764
No	301	274(91.0)	27(9.0)	ref

COR: crude odds ratio; AOD: adjusted odds ratio.