TABLEĀ 1

Practices of reporting or justifying the validity of algorithms to define and assess asthma using electronic health record-derived data

Algorithm validity was justified byAlgorithms n
Identifying asthma patientsAssessing severityAssessing controlDefining exacerbationTotal per category
Validation or concordance analysis in the same study40004
Validation of the same algorithm in the same database1411117
Validation of the same algorithm in different database(s)263213
Validation of other diseases' algorithms in the same database20002
Validation of other diseases' algorithms in different database(s)10001
Being consistent with similar studies in the same database10102
Being consistent with similar studies in different database(s)10012
Being based on nationally developed algorithms30025
Being based on clinical guidelines03003
Relying on the validity of database coding50005
Not justified768418106