Table 7.

Decomposition of concentration index for IPV–OPV-3 in remote and underserved settings in Ethiopia

Explanatory variables	Elasticity	Concentration index	Contribution (%)
Absence of health facility in the kebele	−0.683	0.031	13.3
Dissatisfaction with vaccination service	−0.628	0.032	12.8
Maternal illiteracy	0.129	−0.062	4.9
Paternal illiteracy	0.117	−0.067	4.9
Two or more under-5 children in the household	0.158	−0.032	3.2
Household not visited by HEW in the past 3 months	−0.086	0.043	2.3
Absence of health facility within 1-hour walking distance	0.070	0.042	1.8
Low household decision-maker by the caregiver	0.112	−0.011	0.8
Access to mass media	0.009	0.058	0.3
Place of residence (urban vs. rural)	0.010	0.028	0.2

HEW = health extension worker; IPV–OPV-3 = inactivated poliovirus vaccine and third dose of oral poliovirus vaccine.