Influence of CKD on In-hospital mortality, complications and complication-related mortality. In-hospital mortality (in-hosp mort), complications, and complication-related mortality without and with known CKD subdivided into the five CKD stages. Because of the small number of patients within the CKD stage 1 group (n=193) and the relative sparsity of in-hospital events, all in-hospital outcomes for the CKD stage 1 group were anonymized and are, therefore, not available. PPI, permanent pacemaker implantation.