Fig. 4From: Development of a real-world database for asthma and COPD: The SingHealth-Duke-NUS-GSK COPD and Asthma Real-World Evidence (SDG-CARE) collaborationCohorts used in the preliminary analysis—Combined, SGH and SHP. Note There are some patients who would fall under both circles when the cohorts are combined, hence the lower number in the combined cohort than compared to adding the individual SGH and SHP cohortsBack to article page