Table 3.

Crude (CPR) and adjusted prevalence ratios (APR) for factors associated with agreement between self-report of hepatitis A vaccination and HAV serological testing (Groups 1 and 2) medical examination participants: NHANES 2007–2012 aged ≥20 years.

Factor	Simple logistic model		Final multivariate logistic model
	CPR (95% CI)	p-value*	APR (95% CI)	p-value†
Age at interview (years)
20–29	0.59 (0.51–0.67)	<.001	0.56 (0.49–0.64)	<.001
30–39	0.71 (0.62–0.82)	<.001	0.65 (0.57–0.74)	<.001
40–49	0.70 (0.61–0.80)	<.001	0.66 (0.58–0.76)	<.001
50–59	0.80 (0.72–0.89)	<.001	0.78 (0.70–0.87)	<.001
60+ (ref)	–	–	–	–
Sex
Male	1.07 (0.98–1.15)	.113	1.05 (0.97–1.13)	.242
Female (ref)	–	–	–	–
Race/ethnicity
Mexican-American	1.80 (1.60–2.02)	<.001	1.58 (1.40–1.78)	<.001
White non-Hispanic (ref)	–	–	–	–
Black non-Hispanic	1.07 (0.94–1.22)	.318	1.13 (1.02–1.25)	.019
Poverty index
Below poverty	1.01 (0.89–1.16)	.838	NS	–
At or above poverty (ref)	–	–
Education
<High school (ref)	–	–	–	–
High school/GED	0.69 (0.59–0.79)	<.001	0.84 (0.73–0.96)	.013
>High school	0.82 (0.73–0.91)	.001	1.03 (0.92–1.15)	.574
Place of birth
United States (ref)	–	–	–	–
Elsewhere	1.94 (1.76–2.14)	<.001	1.72 (1.54–1.92)	<.001
Health insurance
Any (ref)	–	–
None	0.99 (0.86–1.13)	.844	NS	–

NS = variable not significant in simple logistic model or when added to final multivariate logistic model and therefore not included in the final multivariate model. Final model includes all variables found to be significant and potential confounds such as sex, even if not significant.

^*p-value for significance of beta coefficients from simple logistic models.

^†p-value for significance of beta coefficients from the final multivariate logistic model.