Table 3. Multivariate logistic regression analysis for factors towards good knowledge and other related aspects of knowledge regarding HPV, CC, and the vaccine (N = 400).

Factors	Overall knowledge towards HPV, CC, and corresponding vaccine				Understanding that CC can be prevented by vaccination				Be aware that HPV vaccine availability in Indonesia
	Unadjusted OR (95%CI)	p-valuea	Adjusted OR (95%CI)	p-valueb	Unadjusted OR (95%CI)	p-valuea	Adjusted OR (95%CI)	p-valueb	Unadjusted OR (95%CI)	p-valuea	Adjusted OR (95%CI)	p-valueb
Sex
Male	Ref	0.000	Ref	0.000	Ref	0.000	Ref	0.000	Ref	0.000	Ref	0.000
Female	2.80 (1.75–4.48)		2.99 (1.83–4.87)		2.98 (1.86–4.80)		3.61 (2.16–6.05)		2.63 (1.66–4.17)		3.30 (1.99–5.46)
Respondent’s Education
Low Education	Ref	0.000	Ref	0.001	Ref	0.000	Ref	0.003	Ref	0.000	Ref	0.020
High Education	2.51 (1.68–3.77)		2.91 (1.89–4.49)		2.88 (1.83–4.53)		2.26 (1.32–3.86)		2.70 (1.75–4.16)		1.86 (1.10–3.13)
Father’s Education
Low Education	Ref	0.018	Ref	0.126	Ref	0.127	Ref	0.263	Ref	0.177	Ref	0.003
High Education	1.62 (1.09–2.41)		1.52 (0.89–2.61)		1.41 (0.91–2.19)		1.42 (0.77–2.61)		1.34 (0.88–2.04)		2.10 (1.30–3.39)
Mother’s Education
Low Education	Ref	0.006	Ref	0.001	Ref	0.058	Ref	0.002	Ref	0.215	-	n/a
High Education	1.75 (1.17–2.61)		2.15 (1.39–3.31)		1.55 (0.98–2.43)		2.27 (1.37–3.76)		1.31 (0.86–2.01)		-
Age
<25 years	Ref	0.294	-	n/a	Ref	0.001	Ref	0.295	Ref	0.000	Ref	0.001
≥25 years	1.24 (0.83–1.84)		-		2.18 (1.36–3.48)		1.45 (0.72–2.90)		2.64 (1.68–4.15)		2.54 (1.43–4.52)
Employment
Not working	Ref	0.253	-	n/a	Ref	0.005	Ref	0.596	Ref	0.006	Ref	0.411
Employed	1.26 (0.85–1.87)		-		1.92 (1.21–3.04)		0.82 (0.39–1.75)		1.84 (1.19–2.83)		0.75 (0.38–1.48)
Salary per month
Low (<350 USD)	Ref	0.484	-	n/a	Ref	0.000	Ref	0.002	Ref	0.001	Ref	0.422
High (≥350 USD)	1.16 (0.77–1.74)		-		2.72 (1.63–4.52)		2.60 (1.40–4.83)		2.18 (1.37–3.46)		1.31 (0.68–2.50)

^aBivariate analysis using Chi-square and Mantel-Haenszel odds ratio estimate, any associated factors with p≤0.20 were deemed eligible for inclusion in the multivariate analysis model;

^bMultivariate logistic regression analysis;

95%CI (95% confidence intervals).