Parents’ preferences and willingness-to-pay for human papilloma virus vaccines in Thailand

Table 3 Results from the multinomial logit model

Attributes	Fathers^a		Mothers^b		Overall^c
Attributes	Estimates	Standard error	Estimates	Standard error	Estimates	Standard error
Constant	0.48206	0.26734	0.89736	0.26769	0.70222	0.18843
Cervical cancer risk	0.33480	0.03580	0.26825	0.03364	0.29818	0.02436
Genital warts risk	0.01145	0.00137	0.01536	0.00134	0.01330	0.00095
Common side effect	−0.08724	0.01287	−0.08055	0.01268	−0.08346	0.00903
Cost	−0.00011	0.00001	−0.00012	0.00001	−0.00011	0.00001

^aLog-likelihood = −684.57, Akaike information criterion = 1.82, Pseudo-R² = 0.16
^bLog-likelihood = −706.19, Akaike information criterion = 1.45, Pseudo-R² = 0.18
^cLog-likelihood = −1,400.42, Akaike information criterion = 1.49, Pseudo-R² = 0.16
P < 0.0001 for all estimates, except constant estimate for fathers p = 0.07

ISSN: 2052-3211