| Host    Factors | Viral    Factors | 
      
        | Age Less than 40 years | Genotypes 2 and 3 | 
      
        | Gender; female | Viral Load < 2 million IU | 
      
        | Ethnicity; nonblack | Lack of mutations in    Interferon-sensitive determining region (ISDR) | 
      
        | Lack of liver fibrosis | Decrease in E2 sequence homology    with Protein Kinase R (PKR) | 
      
        | Anemic conditions | Viral Kinetics; Rapid Decline with    therapy | 
      
        | Immune response | Increased duration of therapy | 
      
        | Interleukin-28 genetic polymorphism | Co-infections | 
      
        | Sex hormones and menopause |  | 
      
        | Non-alcoholic |  | 
      
        | Organ transplant |  | 
      
        | Insulin resistance |  | 
      
        | Obesity |  |