Alcohol use can negatively impact adherence to antiretroviral therapy for HIV/AIDS treatment and success of the treatment. Persistent alcohol use can lead to a chaotic lifestyle and issues like depression, antisocial personality disorder, and emotional circumstances, which are desirable to address before commencing therapy. Alcohol use also impairs liver function and should be avoided in individuals with Hepatitis C. A study found that 28% of a sample reported weekly intoxication from alcohol, which was associated with older age, marital status, sexual behaviors and tobacco use.