Data resource profile: Clinical Practice Research Datalink (CPRD) Aurum

Clinical Practice Research Datalink (CPRD) is a UK government, not-for-profit research service that has been supplying anonymized primary care data for public health research for more than 30 years. In October 2017 CPRD launched a new data resource called CPRD Aurum. CPRD Aurum is a database containing routinely collected data from primary care practices in England, capturing diagnoses, symptoms, prescriptions, referrals and tests for over 19 million patients as of September 2018 (Figure Primary care data in CPRD Aurum have been linked to national secondary care databases as well as deprivation and death registration data (Table