Drivers of unnecessary diagnostic imaging for uncomplicated low back pain among family physicians: a theory-informed qualitative study.

Diagnostic imaging for uncomplicated, low back pain persists despite guidelines, fueling overdiagnosis and costs. This qualitative Canadian study reveals that family physicians’ decisions are driven by fear of missing serious pathology, not knowledge gaps. Key themes—beliefs, skills, resources, social influences, and reinforcement—highlight emotional and contextual factors. Effective interventions must address these anxieties directly, moving beyond simple educational recommendations to reduce unnecessary imaging.