Mothers’ willingness to accept and pay for vaccines to their children in western Iran: a contingent valuation study

Table 4 Multiple linear regression model of the logarithm of WTP of mothers to vaccinate their children (n = 667)

Log WTP	Coefficient	Robust S.E	p-value	95% CI
Mother’s age (in year)	−0.0134^a	0.0071	0.045	−0.0274 to − 0.0002
Mother’s educational level
Below high school (ref.)
High school and above	0.1786	0.1116	0.110	−0.0405 to 0.3978
Health insurance coverage
Yes (ref.)
No	−0.0810	0.1404	0.564	−0.3567 to 0.1947
Sex of the child
Female (ref.)
Male	−0.1113	0.0905	0.219	−0.2890 to 0.0664
Mother’s birthplace
Rural (ref.)
Urban	0.0483	0.1275	0.705	−0.2021 to 0.2987
Monthly household income (in US$)
< 80
80–160	0.3338^a	0.1342	0.013	0.0702 to 0.5974
160–320	0.5145^a	0.1488	0.001	0.2222 to 0.8068
> 320	1.1013^a	0.2050	0.001	0.6987 to 1.5040

Note: Dependent variable: logarithm WTP; number of observations: 667; F (8, 658): 8.12; Prob>F:0.001; R-squared: 0.0716; S.E: standard error. ^asignificant at 5% level

ISSN: 1471-2431