Baseline characteristics
Three practices in the intervention group were solo practices compared to none in the control group. The mean number of patients per GP was lower in the intervention group (n = 1582) compared to the control group (n = 1697).Patient baseline characteristics are shown in Table 
Baseline characteristics of included patientsCOPD: Chronic Obstructive Pulmonary DiseaseSummary statistics are shown in number and column percentages between parentheses*p-value based on a 0.05 significance level (Fischer’s Exact Test)