Table 4.

Revaccination studies for hepatitis B virus in inflammatory bowel disease

Ref.	Study	Patients, n	Strategies	Response rate for anti-HBs
Pratt et al[71], 2019	Retrospective cohort	149	3-dose schedule vs 1 or 2 doses	62.9%
				40.2% (> 10)
Cossio-Gil et al[60], 2015	Retrospective cohort	53	3-dose schedule	52.8%
Loras et al[59], 2014	Prospective	389	Double-dose 0-1-2	31.3% (> 100)
				44.4% (10-100)

HBs: Hepatitis B surface protein.