Table 4. Perceptions of being at risk of mycobacterial diseases, by demographic characteristics in northern Tanzania, 2011–12.

Characteristic		Consider being at risk?
	Total	Yes, n (%)	No, n (%)	Risk Ratio and 95% CI
Sex
Male	84	34(41)	50(60)	1.09; (95%CI 0.735–1.584)
Female	80	30(38)	50(63)
Age group
< = 20	14	5(36)	9(64)	0.66; (95%CI 0.310–1.419)
21–30	39	8(21)	31(80)	0.38; (95%CI 0.193–0.754)
31–40	46	16(35)	30(65)	0.65; (95%CI 0.395–1.055)
41–50	26	14(54)	12(46)	1.00; (95%CI 0.632–1.583)
>50	39	21(54)	18(46)
Marital status
Married	119	49(41)	70(59)	1.24; (95%CI 0.775–1.968)
Others (single, widow, widower)	45	15(33)	30(67)
Region
Arusha	59	21(51)	38(64)	0.87; (95%CI 0.575, 1.314)
Manyara	105	43(41)	62(59)
District
Mbulu	106	43(41)	63(59)
Ngorongoro	18	3(17)	15(83)	0.41; (95%CI 0.143–1.184)
Arusha	40	18(45)	22(55)	1.11; (95%CI 0.734–1.676)
Type respondent
Patients	41	21(51)	20(49)
Relative	68	28(41)	40(59)	0.80; (95%CI 0.532–1.214)
Neighbor	55	15(27)	40(73)	0.53; (95%CI 0.315–0.900)
Level of education
No formal education	38	17(45)	21(55)	1.34; (95%CI 0.708–2.545)
Primary	99	38(38)	61(62)	1.15; (95%CI 0.639–2.075)
Secondary and above	27	9(33)	18(67)
Residence
Urban	47	18(38)	29(62)	0.97; (95%CI 0.636–1.493)
Rural	117	46(39)	71(67)
Occupation
Peasant	117	47(40)	70(60)
Employed	13	4(31)	9(69)	0.77; (95%CI 0.329–1.783)
Business	23	10(44)	13(57)	1.08; (95%CI 0.646–1.813)
None	11	3(27)	8(73)	0.68; (95%CI 0.252–1.827)