Table 6.
Effect of household characteristics on willingness to pay (WTP) for vaccination Narok South District, Kenya, 2006.
| Variable | Coefficient estimate | 95% CI of coefficient estimate | p |
|---|---|---|---|
| Intercept | 7.7375 | 6.81–8.67 | <0.0001 |
| Gender | 0.1196 | −0.02 to 0.26 | 0.0947 |
| Household situation | −0.1765 | −0.30 to −0.05 | 0.0078 |
| Crosses | −0.0203 | −0.03 to −0.01 | <0.0001 |
| Treat | 0.1356 | 0.01 to 0.27 | 0.0432 |
| Education | 0.0164 | 0.00 to 0.03 | 0.0251 |
| Group | 0.0499 | −0.07 to 0.17 | 0.4292 |
| Years | −0.0118 | −0.02 to 0.00 | 0.0375 |
| Income | 0.0208 | −0.05 to 0.09 | 0.5761 |
The factors influencing WTP were determined through a backward fitting ordinary least squares (OLS) regression model. From 22 factors assumed to be important, only those that significantly influenced WTP were included in this output (most parsimonious model) except for the case of gender and group which were retained for the purpose of discussion.