Bipolar Disorder Symptom Monitoring Measures: A Mixed-Methods Study of Patient Preferences

Abstract

To determine the perceived acceptability and helpfulness of bipolar disorder symptom measures and rank the measures in order of preference among individuals with bipolar disorder. We recruited 20 participants 18 years of age or older with any type of bipolar disorder from a primary care clinical site and a national advocacy organization. We used a simultaneous complementary mixed-method design involving completion of symptom measures, a semistructured interview, and numerical ranking of measures. Participants completed three symptom measures or combination of measures: 1) Affective Self-Rating Scale; 2) combination Patient Mania Questionnaire-9 (PMQ-9) and Patient Health Questionnaire-9 (PHQ-9); and 3) combination Altman Self-Rating Mania Rating Scale and PHQ-9. A semistructured interview was conducted, and participants ranked their preferences for measures. Interviews focused on participants' rationale for measuring preferences. Interviews were analyzed by two psychiatrist-investigators using content analysis, and themes were determined. Average rank of each measure was determined. The average rank for each measure was 1.48 for the combination PMQ-9 and PHQ-9, 1.68 for the Affective Self-Rating Scale, and 2.85 for the combination Altman Self-Rating Mania Rating Scale and PHQ-9, indicating that the combination PMQ-9 and PHQ-9 (top-ranked measure by 55% of participants) was the most preferred among the three measures. Major themes that emerged from the data were: 1) measure format; 2) patient experience; 3) clinical practice; and 4) therapeutic effects. Individuals with bipolar disorder preferred the combination PMQ-9 and PHQ-9 for use in monitoring treatment due to perceived strengths such as format, ease of completion and interpretation, accurate description of experiences, and feasibility of use in practice.