Table 2.

HBsAg clearance and response at weeks 48 and 72

Clinical information	Switch-to N (%)	Add-on N (%)	ETV N (%)	P-value
Week 48
N	22	26	53
Clearance	2 (9%)	4 (15%)	0 (0%)	<0.05
Seroconversion	2 (9%)	4 (15%)	0 (0%)	<0.05
Response	13 (60%)	9 (38%)	1 (2%)	<0.001
Week 72
N	22	26	53
Clearance	2 (9%)	4 (15%)	0 (0%)	<0.05
Seroconversion	2 (9%)	4 (15%)	0 (0%)	<0.05
Response	13 (60%)	10 (40%)	1 (2%)	<0.001

Notes: Fisher’s exact test. The definition of response is HBsAg reduction >1 log IU/mL.

Abbreviations: ETV, entecavir; HBsAg, hepatitis B surface antigen.