MIU = million international units; TIW = three times a week. a: p value based on Cochran-Mantel Haenszel Chi square test. b: p value based on chi-square test. c: subjects < 75 kg received 100 µg/week PegIntron and subjects ≥ 75 kg received 150 µg/week PegIntron. d: ribavirin dosing was 800 mg for patients < 60 kg, 1,000 mg for patients 60-75 kg, and 1, 200 mg for patients > 75 kg.