Predictors of HAV/HBV vaccination completion among methadone maintenance clients

Adeline Nyamathi, Karabi Sinha, Barbara Greengold, Allan Cohen, Mary Marfisee

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8 Scopus citations


This randomized, controlled study (N1/4256) was conducted to compare three interventions designed to promote hepatitisAvirus (HAV) and hepatitis B virus (HBV) vaccination completion among clients undergoing methadone maintenance (MM) treatment. Participants were recruited from five MM treatment sites in Southern California and randomized into three groups: Motivational Interviewing-Single (MI-Single), Motivational Interviewing-Group (MI-Group); and Nurse-Led Hepatitis Health Promotion (HHP). All were offered the three-series HAV/HBV vaccine. A total of 148 participants completed the vaccine. Groups did not differ in rate of vaccination completion (73.6%, HHP group, vs. 65% and 69% for the MISingle and MI-Group, respectively). The equivalence of findings across groups suggests the value of including nurses with a comprehensive health focus in promoting vaccination completion.

Original languageEnglish
Pages (from-to)120-132
Number of pages13
JournalResearch in Nursing and Health
Issue number2
StatePublished - Apr 2010


  • Health promotion
  • Hepatitis a and b
  • Methadone maintained
  • Nurse


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