Table 3.

Stratification analyses on the risk of HBV infection and HBsAg carriage according to mother’s HBsAg status and survey time.

Outcomes	Dose of hepatitis B vaccine	Mother’s HBsAg status				Survey time
		Negative (N = 1117)		Positive (N = 146)		2014 (N = 1013)		2020 (N = 1007)
		Adjusted odds ratio (95% CI)*	P value	Adjusted odds ratio (95% CI)*	P value	Adjusted odds ratio (95% CI)*	P value	Adjusted odds ratio (95% CI)*	P value
HBV infection	5 μg#	Reference		Reference		Reference		Reference
	10 μg#	0.57 (0.13–2.58)	.47	0.27 (0.03–2.78)	.27	0.53 (0.06–5.11)	.58	0.27 (0.07–1.12)	.071
	5 μg&	Reference		Reference		Reference		Reference
	10 μg&	0.49 (0.11–2.20)	.35	0.24 (0.02–2.55)	.24	0.49 (0.05–4.95)	.55	0.23 (0.06–0.92)	.038
HBsAg carriage	5 μg#	Reference		Reference		Reference		Reference
	10 μg#	–	–	0.44 (0.04–5.4)	.52	1.80 (0.17–19.46)	.63	0.26 (0.02–4.13)	.26
	5 μg&	Reference		Reference		Reference		Reference
	10 μg&	–	–	0.40 (0.03–4.87)	.47	1.63 (0.14–18.69)	.69	0.24 (0.02–3.90)	.24
Anti-HBc positive	5 μg#	Reference		Reference		Reference		Reference
	10 μg#	0.54 (0.12–2.45)	.43	0.27 (0.03–2.82)	.27	0.49 (0.05–5.19)	.56	0.23 (0.06–0.96)	.043
	5 μg&	Reference		Reference		Reference		Reference
	10 μg&	0.46 (0.10–2.07)	.31	0.24 (0.02–2.60)	.24	0.51 (0.05–5.52)	.58	0.20 (0.05–0.81)	.025

*Adjusted for resident (urban or rural), birth year (<2002 or ≥2002), gender (male or female), and birth place (hospital, home, or unknown) in the stratification analysis by the mother’s status of HBsAg (negative or positive). For the survey time stratification, the mother’s HBsAg status (positive, negative, or unknown), resident, gender, and birth place were included in the model.

^#Referred to the treated dose of hepatitis B vaccine; ^&Referred to the surveyed dose of hepatitis B vaccine.