Table 2.

Selected covariates and WTP, unadjusted and adjusted associations.

Variable	N (500)	Willingness to participate		Unadjusted OR (95% CI)	Adjusted OR (95% CI)
		Yes, N (277)%	No, N (223)%
Population
SW + MCTD	197	131 (66.5)	66 (33.5)	2.1 (1.5, 3.1)	1.9 (1.2, 3.1)
Students + GP	299	145 (48.5)	154 (51.5)	Reference
Age
18–32 years	372	223 (59.9)	149 (40.1)	2.1 (1.4, 3.1)	2.0 (1.1, 3.6)
≥ 33 years	128	54 (42.2)	74 (57.8)	Reference
Education
≤ 6 years	70	38 (54.3)	32 (45.7)	0.9 (0.6, 1.6)	1.2 (0.6, 2.2)
≥ 12 years	430	239 (55.6)	191 (44.4)	Reference
Marital status
Married	155	79 (51.0)	76 (49.0)	0.8 (0.5, 1.2)	1.1 (0.6, 2.0)
Living together	16	4 (25.0)	12 (75.0)	0.3 (0.1, 0.8)	0.4 (0.1, 1.4)
Others	46	33 (71.7)	13 (28.3)	1.9 (1.0, 3.8)	0.9 (0.3, 2.4)
Single	283	161 (56.9)	122 (43.1)	Reference
Gender
Male	282	150 (53.2)	132 (46.8)	0.8 (0.6, 1.2)	0.8 (0.5, 1.3)
Female	209	122 (58.4)	87 (41.6)	Reference
Awareness
Low	248	136 (54.8)	112 (45.2)	1.0 (0.7, 1.4)	1.2 (0.8, 1.9)
High	252	141 (55.9)	110 (44.1)	Reference
Ethnic group
Tiv, Idoma, and Igala	80	57 (71.3)	23 (28.7)	2.8 (1.6, 4.7)	2.6 (1.5, 4.6)
H/F, Yoruba, and Igbo	283	134 (47.4)	149 (52.7)	Reference

Note: OR, odds ratio; CI, confidence interval.