The changing nature of chronic care and coproduction of care between primary care professionals and patients with COPD and their informal caregivers

The aim of this study was to investigate whether care delivery in accordance with a care model is associated with co-productive relationships between professionals and COPD patients and their informal caregivers. A co-productive relationship refers to productive patient–professional interaction or shared decision making. This cross-sectional study was conducted in 2014 among 411 patients (out of 981) enrolled in the Dutch COPD care program Kennemer Lucht and 62 professionals treating them (out of 97). Kennemer Lucht COPD involved multicomponent interventions within all six dimensions of the chronic care model (organizational support, community, self-management, decision