Table 6.

Factors associated with WTP and amount willing to pay for the HPV vaccine

Characteristics	WTP for HPV vaccine		Amount willing to pay (VND)
	OR	95% CI	Coefficient	95% CI
Vaccine service user (vs children)
Adult male	0.12***	0.03 to 0.52	−271.32	−664.03 to 121.40
Age (vs <20 years)
20–29 years	6.99***	1.62 to 30.21
≥30 years			−323.61*	−683.20 to 35.98
Marital status (living with spouse/partner vs single/divorced/widowed)			532.75***	167.71 to 897.78
Education (vs secondary school or less)
High school	3.30	0.72 to 15.06
More than high school			−572.98***	−936.33 to −209.64
Employment (vs freelancer)
White-collar worker	6.00**	1.35 to 26.59
Household income (million VND/month) (vs <7 million VND/month, very poor)
7–10 (poor)	0.28**	0.09 to 0.95
10–20 (rich)			303.64	−102.51 to 709.79
20–600 (very rich)	11.61*	0.66 to 203.74	474.91**	82.19 to 867.63
Has children (vs no children)
Has children >6 years old			1,294.77**	161.91 to 2,427.63
Source of hearing about HPV (vs no)
Doctors/nurses/health professionals	0.18***	0.05 to 0.59	−443.34***	−719.17 to −167.51
Social network/internet			204.28	−79.47 to 488.03
Source for finding HPV information (vs no)
Community health worker			−550.15***	−967.00 to −133.31
Website/newspaper/television			−324.51**	−616.88 to −32.14
Believes that HPV vaccine is safe (yes vs no)			440.58*	−20.91 to 902.07
Believes that HPV vaccine is effective (yes vs no)	0.08**	0.01 to 0.62
Has ever examined reproductive health (yes vs no)	0.23**	0.06 to 0.91
Has family member who ever had STI (yes vs no)	13.26*	0.73 to 241.17

Note:

^***p<0.01,

^**p<0.05,

^*p<0.1.

Abbreviations: HPV, human papillomavirus; WTP, willingness to pay; VND, Vietnamese dong; STI, sexually transmitted infection.