Table 1.

Overview of the completeness of the mandatory variables within the PCI registry of the Netherlands Heart Registration (year 2019)

	Number	Percentage
Identifying variables
Age	40,712	100.0%
Gender	40,712	100.0%
Patient characteristics
Creatinine	39,640	97.4%
Diabetes	40,418	99.3%
Dialysis	40,642	99.8%
Multivessel disease	40,598	99.7%
Chronic total occlusion	40,673	99.9%
Previous MI	40,447	99.3%
Indication PCI	40,666	99.9%
Shock	40,676	99.9%
OHCA	40,689	99.9%
Previous PCI	40,582	99.7%
Previous CABG	40,565	99.6%
Intervention variables
Date of intervention	40,712	100.0%
Heart team	40,695	100.0%
Access route	40,636	99.8%
PCI vessel	40,664	99.9%
PCI type	40,661	99.9%
Outcome variables
Acute CABG (≤ 24 h)	40,699	100.0%
MI (≤ 30 days)	33,935	83.4%
Target vessel revascularisation (≤ 1 year)	35,638	87.5%
Staged procedure	30,324	74.5%
Mortality	40,527	99.5%
Date of death	40,526	99.5%

MI myocardial infarction, PCI percutaneous coronary intervention, OHCA out-of-hospital cardiac arrest, CABG coronary artery bypass graft