Godycki‐Cwirko 2014.

Methods	Study design: cluster RCT (protocol) Duration: 9 months Location: Poland
Participants	Population: NA Baseline characteristics: NA Inclusion criteria: people treated in the same practice at baseline (including those with COPD) Exclusion criteria: terminal illness, cognitive impairment
Interventions	Treatment arms Tailored intervention programme directed at general practices Usual care
Outcomes	Primary outcomes: GP adherence to recommendations Secondary outcomes: patient health outcomes (e.g. change in smoking status, number of COPD medications prescribed, dyspnoea perception, number of exacerbations in the past and during the study)
Notes	Other identifier: NCT01893476