Table 3.

Associated factors of hepatitis A virus seropositivity, stratified by hepatitis A vaccination status of study participants.

Parameters	Vaccinated participants (n = 65)						Unvaccinated participants (n = 235)
	Univariable analysis*			Multivariable analysis*			Univariable analysis*			Multivariable analysis*
	Odds ratio	95% CI	P	Adjusted odds ratio	95% CI	P	Odds ratio	95% CI	P	Adjusted odds ratio	95% CI	P
Age group
1.0–5.9 years	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref
6.0–10.9 years	1.80	0.27–11.86	0.54	2.52	0.29–22.28	0.41	1.67	0.53–5.25	0.38	1.62	0.48–5.43	0.43
11.0–18.0 years	0.33	0.07–1.65	0.18	0.71	0.09–5.85	0.75	2.87	0.99–8.34	0.05	1.71	0.44–6.56	0.44
Male sex	1.39	0.36–5.37	0.63	0.90	0.16–5.03	0.91	1.54	0.69–3.43	0.29	1.78	0.75–4.22	0.19
BMI category
Normal	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref
Overweight	2.00	0.22–18.39	0.54	7.13	0.36–142.72	0.20	4.08	1.58–10.55	0.004	5.00	1.82–13.73	0.002
Obese	2.50	0.28–22.49	0.14	5.47	0.30–98.29	0.25	1.19	0.41–3.49	0.75	1.09	0.35–3.42	0.88
Number of people sharing participant’s bedroom, per one person increase	2.47	1.31–4.67	0.005	3.23	1.34–7.80	0.009	0.67	0.48–0.95	0.02	0.70	0.44–1.12	0.14

BMI body mass index, Ref reference group, 95% CI 95% confidence interval.

*Univariable logistic regression analysis was performed to identify associated factors of hepatitis A virus seropositivity among study participants. Covariate with P < 0.20 which was number of people sharing participant’s bedroom as well as the well-known prespecified confounding factors, including age, sex and body mass index were incorporated in the multivariable logistic regression analysis.