Figure 1. Cohort Development in a Nested Case-Control Study of Cardiovascular Events After New Diagnosis of Gout.

^aThe Clinical Practice Research Datalink is a longitudinal primary care database of anonymized health records of 15 million people across the United Kingdom from over 700 medical practices. It contains data about sociodemographics, lifestyle factors, diagnoses, consultations, and prescriptions recorded in primary care, hospitalization records, and mortality data.

^bAs many as 5 controls were matched to each case patient for age (± 2 years), sex, and duration of gout at first cardiovascular event (± 2 years).

^cThere were no exclusions from this group. All patients had at least 1 primary care consultation in the 12 months before the index date.