A quasi-experimental study about shared decision-making and motivational interviewing on patients with a recent fracture attending a fracture liaison services.

Abstract

Shared decision making (SDM) aims to improve patients' experiences with care, treatment adherence and health outcomes. However, the effectiveness of SDM in patients with a recent fracture who require anti-osteoporosis medication (AOM) is unclear. The objective of this study was to assess the effectiveness of a multi-component adherence intervention (MCAI) including a patient decision aid (PDA) and motivational interviewing at fracture liaison services (FLS) on multiple outcomes compared to usual care (UC). This pre-post superiority study included patients with a recent fracture attending the FLS and with AOM treatment indication. The primary outcome was one-year AOM persistence measured by pharmacy records. Secondary outcomes included treatment initiation, AOM adherence (measured by medication possession ratio, MPR), decision quality (SDM process (0-100; best) and decisional conflict (0-100, highest conflict), subsequent fractures, and mortality. Outcomes were tested in MCAI and UC groups at the first FLS visit and 4- and 12-months after. Multiple imputation, uni- and multi-variable analyses were performed. Post-hoc analyses assessed the role of health literacy level. In total, 245 patients (MCAI: n = 136, UC: n = 109) were included. AOM persistence was 80.4% in the MCAI and 76.7% in the UC group (P=.626). SDM process scores were significantly better in MCAI (60.4 vs 55.1, P=.003). AOM initiation (97.8% vs 97.5%), MPR (90.9% vs 88.3%, P=.582), and decisional conflict (21.7 vs 23.0, P=.314) did not differ between groups. Results did not change importantly after adjustment. Stratified analyses by health literacy showed a better effect on MPR and SDM in those with adequate health literacy. This study showed no significant effect on AOM persistence however demonstrated a significant positive effect of MCAI on SDM process in FLS attenders.