Table 2.

Inclusion and exclusion criteria

Inclusion criteria

Age ≥ 18 y

CKD

PCI

NSTEMI

Exclusion criteria

Missing information for in‐hospital mortality data and timing of PCI

Elective admissions

ESRD without mention of AKI

STEMI

Valvular surgery or CABG during the same admission

Pre‐admission, index PCI on or after fourth day of admission

Repeat procedure (staged PCI) after index procedure

Abbreviations: AKI, acute kidney injury; CABG, coronary artery bypass grafting; CKD, chronic kidney disease; ESRD, end‐stage renal disease; NSTEMI, non–ST‐segment elevation myocardial infarction; PCI, percutaneous coronary intervention; STEMI, ST‐segment elevation myocardial infarction.