PIN38 PATIENT PREFERENCES AND STATED ADHERENCE FOR HEPATITIS C VIRUS TREATMENTS.pdf.pdf

Abstracts A117
PIN38 The fi nal questionnaire was administered to 311 subjects experiencing infl uenza like
PATIENT PREFERENCES AND STATED ADHERENCE FOR HEPATITIS C illness, including 22% with laboratory-confi rmed infl uenza infection, presenting to
VIRUS TREATMENTS clinicians across 25 USA sites. Items properties and scales were investigated using
Mohamed AF1, Hauber AB1, Medjedovic J2, Beam C3 descriptive statistics, Item Response Theory (IRT), Confi rmatory Factor Analysis
1RTI Health Solutions, Research Triangle Park, NC, USA, 2Novartis Pharma AG, Basel, (CFA), internal consistency and test-retest reliability. RESULTS: The patient Concept
Switzerland, 3Human Genome Sciences, Inc, Rockville, MD, USA Mapping resulted in 149 concepts which clustered into daily activities, emotions and
OBJECTIVES: To estimate patient preferences for attributes of hepatitis C virus relationships. Eleven symptoms were identifi ed from the literature. Expert content
(HCV) treatments and the effect of product attributes on stated medication adherence. review led to item clarifi cation, removal (n  2) and addition of an item. Candidate
METHODS: HCV patients,18 years and pleted an online survey instrument items were drafted using predefi ned criteria including simplicity and brevity. Both
that included 9 conjoint choice-format trade-off tasks. Subjects chose among pairs of IRT and CFA ass