Received: 30 January 2020
Accepted: 5 February 2020
First Online: 10 February 2020
Ethics approval and consent to participate
: We have permission from the Medical Ethics Committee of the University of Groningen to conduct this research (contact: + 31 (0)50 361 4204). This study is related to the original IMPACT study. Individuals in the dataset are aware of the use of hospital information as input for the analysis.
: We have permission on behalf of the individuals (or relatives) from which individual patient data is used to publish the conducted results.
: The authors declare that they have no competing interests.