Triple therapy of interferon and ribavirin with zinc supplementation for patients with chronic hepatitis C: A randomized controlled clinical trial

Table 2 Virological response rates for dual and triple therapy groups at different weeks (w) after commencement of each treatment

HCV RNA(kcopy/mL)	Triple therapy group				Dual therapy group
	1wk	4wk	24wk	48wk	1wk	4wk	24wk	48wk
>500	1/17	13/21	21/26	5/26	1/20	10/20	25/26	7/26
	5.9%	61.9%	69.2%	19.2%	5.0%	50.0%	96.2%	26.9%
					NS	NS	NS	NS
100-499	4/8	10/12	13/13	8/13	2/9	6/8	13/13	6/13
	50.0%	83.3%	100%	61.5%	22.2%	75.0%	100%	46.2%
					NS	NS	NS	NS
All patients	5/25	23/33	34/39	13/39	3/29	16/28	38/39	13/39
	20.0%	69.7%	87.2%	33.3%	10.3%	57.1%	97.4%	33.3%
					NS	NS	NS	NS

Fisher’s exact test. NS, not significant.