[1]Department of Surgery;
University Medical Center Utrecht;
3508 GA Utrecht;
The Netherlands;
[2]Department of Surgery;
Erasmus Medical Center Rotterdam;
3000 CA Rotterdam;
The Netherlands;
[3]Department of Clinical Epidemiology;
Julius Centre for Health Sciences and Primary Care;
3508 GA Utrecht;
The Netherlands;
[1]Department of Surgery;
University Medical Center Utrecht;
3508 GA Utrecht;
The Netherlands;
Intensive care performance; Quality of care; Critical care; Intensive care medicine;