Table 3.

Association between number of additional HBV vaccine doses and HBV immunity

	Base model±		Multivariable model§
	OR (95% CI)	P value	OR (95% CI)	P value
All ages	1.95 (1.27, 2.99)	< 0.01	1.77 (1.12, 2.80)	0.01
Age < 40 years+	2.18 (1.05, 4.52)	< 0.05	1.90 (0.83, 4.39)	0.13
Age > 40 years+	1.96 (1.13, 3.41)	< 0.05	1.90 (1.05, 3.43)	< 0.05

⁺Performed as part of secondary analysis

^±Base model adjusted for patient age, sex, and race

^§Multivariable model adjusted for patient age, sex, race, BMI, immunosuppressive drug exposure, and interval time between vaccination and titer level measurement

HBV hepatitis B virus, OR odds ratio, CI confidence interval