. Author manuscript; available in PMC: 2020 Jul 1.

Published in final edited form as: Dig Dis Sci. 2019 Apr 3;64(7):2031–2038. doi: 10.1007/s10620-019-05595-6

Table 4.

Association between number of additional HBV vaccine doses and follow-up HBsAb titer level

	Base model^±		Multivariable model^§
	β (SE)	P value	β (SE)	P value
All ages	107.29 (25.51)	< 0.001	116.29 (27.56)	< 0.001
Age < 40 years⁺	145.32 (54.04)	0.01	181.1 (64.73)	< 0.01
Age ≥ 40 years⁺	81.77 (24.67)	0.001	89.23 (26.52)	0.001

⁺

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, β beta-coefficient, SE standard error