Table 1 Exclusion of patients with multiple coding (discharge key 6) from the InEK database patient sample
Year | Cases with main ICD diagnosis of I63 | Excluded cases (discharge key 6) | Cases included in our main dataset |
|---|---|---|---|
2016 | 258,480 | 30,792 | 227,688 |
2019 | 257,015 | 29,757 | 227,258 |
2021 | 246,428 | 29,505 | 216,923 |
2022 | 242,491 | 27,012 | 215,479 |