Table 2.

Hepatitis B vaccination response

Outcomes	3-dose group (n = 27)	4-dose group (n = 27)	p-value
Anamnestic response	7 (25.9%)	9 (33.3%)	0.551
High-level responders at week 4	0 (0%)	1 (3.7%)	1.000
Responders at week 28	23 (85.2%)	24 (88.9%)	1.000
High-level responders at week 28	12 (44.4%)	17 (63.0%)	0.172
GMT of anti-HBs Ab at week 4 (95% CI)	4.4 (2.1–8.4)	5.29 (2.4–10.8)	0.714
GMT of anti-HBs Ab at week 28 (95% CI)	63.8 (31.4–128.7)	209.8 (90.0–487.4)	0.030

CI confidence interval, GMT geometric mean titer