Parent Medication Barriers Scale (PMBS): A preliminary investigation of factor structures with hematopoietic stem cell transplant recipients

ABSTRACT

Purpose. To examine caregiver barriers to medication adherence and the factor structure of the Parent Medication Barriers Scale (PMBS), a self-report measure, in children with hematopoietic stem cell transplantation (HSCT). Methods. Caregivers of 81 children/adolescents with HSCT completed the PMBS. Results. Internal consistency in the current sample was acceptable (α = 0.85); subscale reliability ranged from 0.34 to 0.72. Criterion validity was examined with the Medical Adherence Measure. Confirmatory factor analyses yielded a 2-factor solution and the factors were found to be moderately reliable (α = 0.77; α = 0.67). Conclusions. Results suggest that adapting the PMBS measure to create a young child HSCT-specific caregiver version is warranted.