Fig. 1

Relative change (incidence rate ratio and 95% confidence interval) in next-year COPD admissions for combinations of current year health service use, % of total and number of observations within each combination

Note: Adjusted for variables in Table 3 and Table S2. The reference category is no contacts for respiratory diagnoses (26% of total, n = 38,637 observations). The category no GP contact and use of all other services is omitted due to few observations (n = 29). N = 148,128 observations from 24,074 patients. GP = general practitioner, Sp = contract specialist contact, Outp = outpatient contact with hospital, Phy = physiotherapy contact