1.1 Source data
The EMR data used in this study originated from a tertiary acute care
hospital in Singapore, which provides a comprehensive range of medical
and surgical speciality services.
The data contained information on 258,038 patients who had visited the
hospital between January 2013 and December 2016. Overall, there were
approximately 1.1 million records of medical conditions, 5.2 million
transactions of ordered medications and 15.5 million entries of
laboratory tests and investigations. Among ordered medications, these
were further subdivided into dispensed orders (both outpatient and
inpatient settings) and inpatient medications (medications administered
during inpatient ward stay).