Composition of treatment alliance in bipolar disorder: A cross-sectional study of patients’ perspectives

BACKGROUND: Treatment alliance has an impact on several key patient outcomes in all psychiatric disorders, including bipolar disorder (BD). It has been suggested that the construct of treatment alliance is different among patients from routine psychiatric settings compared to psychotherapeutic settings. However, research on the composition of treatment alliance in psychiatric disorders, such as BD, is relatively limited. AIM: To determine whether a broader construct of treatment alliance was prevalent among outpatients with BD. METHODS: This is a cross-sectional study, conducted in the psychiatric unit of a multi-specialty hospital in north India over 12 mo (September 2018 to September 2019). A consecutive sample of 160 remitted adult outpatients with BD on mood stabilizers for at least a year were selected. The principal instrument to assess treatment alliance was the Working Alliance Inventory-client version (WAI-Client). Other potential constituents of the alliance explored were perceived trust in clinicians assessed by the Trust in Physicians (TRIP) scale, perceived support from clinicians assessed by the Psychosocial Care by Physicians (PCP) scale, and perceived treatment satisfaction assessed by the Patient Satisfaction Questionnaire (PSQ). Associations between scores on all scales were determined by correlational and multiple regression analyses. Exploratory factor analysis of combined items of all scales was conducted using a principal components analysis. RESULTS: Scores on all the three WAI-Client subscales were significantly correlated with each other (r = 0.66-0.81; P < 0.0001). The total TRIP scores were associated with the total WAI-Client scores (r = 0.28; P < 0.01). The total TRIP scores and the total PCP scores were also significantly associated with the WAI-Client scores on the Task subscale (r = 0.28-0.29; P < 0.01). The total TRIP scores were significantly associated with the total PSQ scores (r = 0.45; P < 0.0001). Factor analysis yielded two independent and coherent factors, which explained 69% of the variance in data. Factor-1 (“alliance and support”), which explained about 41% of the variance, was comprised of a combined WAI-Client goal-task-bond component as well as the PCP support items. Factor-2 (“trust and satisfaction”), which explained about 28% of the variance, consisted of all the TRIP trust and the PSQ treatment satisfaction items. CONCLUSION: A broader construct of treatment alliance in BD was found. Apart from collaborative components, this construct included patients’ perceptions regarding trust in clinicians, support from clinicians, and treatment satisfaction.