Occupational risk factors associated with respiratory symptoms among tannery workers in Mojo town, Southeast Ethiopia, 2018: a comparative cross-sectional study

Table 3 Multivariable analysis of factors associated with respiratory symptoms among exposed and unexposed groups, Mojo town, Southeast Ethiopia, 2018 (N = 602)

Variables	Respiratory symptoms		COR (95% CI)	AOR (95% CI)
Variables	Yes	No
Exposure status
Exposed	81	218	4.13 (2.55, 6.69)^a	3.37 (1.71, 6.46)^b
Unexposed	25	278	1	1
Sex
Female	34	88	2.18 (1.37, 3.50)^a	1.80 (1.24, 3.34)^b
Male	72	408	1	1
Age (years)
18–24	31	113	1.30 (0.70, 2.43)	1.39 (0.62, 3.08)
25–34	55	288	0.90 (0.52, 1.59)	1.12 (0.58, 2.12)
35+	20	95	1	1
Work experience (years)
1–5	37	221	1	1
6–10	36	155	1.38 (0.83, 2.29)	0.60 (0.32, 1.15)
> 10	33	120	1.64 (1.97, 2.76)^a	1.42 (1.19, 2.18)^b
Educational status
Primary (grade 1–8)	30	76	2.92 (1.88, 5.39)^a	1.52 (1.27, 4.79)^b
Secondary (9–12)	33	101	2.42 (1.56, 4.31)^a	1.24 (1.16, 3.87)^b
Diploma and above	43	319	1	1

Keys: ^asignificant in a bivariate analysis; ^bSignificant in a multivariable analysis