Table 2.

Correlates of women’s willingness to pay for routine childhood vaccinations (southern Tanzania, 2017, N = 406).

	Bivariable estimates			Multivariable estimates
	Coefficient	Std. Err.	p	Coefficient	Std. Err.	p
Age in years (range 16–45)	−0.022	0.012	0.080	0.003	0.014	0.803
Less than primary school education	−1.121	0.184	<0.001	−0.401	0.190	0.035
Married	0.055	0.233	0.813	0.160	0.193	0.407
More than 2 adults in the household	0.470	0.196	0.016	0.519	0.159	0.001
Asset score (range 0–10)	0.204	0.035	<0.001	0.049	0.035	0.160
Previously gave birth	−0.619	0.204	0.002	−0.462	0.214	0.031
Vaccine hesitancy score (range 0–17)	−0.163	0.027	<0.001	−0.142	0.032	<0.001
Names 1 + vaccine-preventable disease	0.655	0.190	<0.001	0.472	0.181	0.009
Names 1 + vaccine-related side effect	−0.707	0.178	<0.001	−0.831	0.171	<0.001
Rural residence	−0.945	0.175	<0.001	−0.405	0.165	0.014
Time to nearest health facility in minutes (range 2–180)	−0.020	0.005	<0.001	−0.010	0.005	0.064
Constant				8.761	0.449	<0.001
RMSE				1.553	0.107

Abbreviations: WTP – willingness to pay; Tsh. – Tanzanian shilling; Std. Err. – Standard error; RMSE – root mean square error.

Notes: Estimates from bivariable and multivariable interval censored regression models predicting log(WTP) as a function of the respective covariate(s). Estimates in 2017 Tsh. At the time of the study 1 US Dollar was worth approximately Tsh 2,200.