Background: Care for patients with chronic diseases is challenging and requires multifaceted interventions to appropriately coordinate the entire treatment process. The effect of such interventions on clinical outcomes has been assessed, but evidence of the effect on organization of care is scarce. The aim is to assess the effect of structured diabetes care on organization of care from the perspective of patients and healthcare professionals in routine practice, and to ascertain whether this effect persistsMethods: In a quasi-experimental study the effect of structured care (SC) was compared with care-as-usual (CAU). Questionnaires were sent to healthcare professionals (SC n = 31; CAU n = 11) and to patients (SC n = 301; CAU n = 102). A fol...