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Table 1 Characteristics of patients and procedures during hospitalizations

From: Outcomes, risk factors and health burden of contrast-induced acute kidney injury: an observational study of one million hospitalizations with image-guided cardiovascular procedures

  Hospitalizations (n = 1,047,329)
Age (years), mean (SD) 66.1 (13.8)
Men, n (%) 712,586 (68.0 %)
Risk factors
 Diabetes 270,463 (25.8 %)
 Chronic kidney disease 96,489 (9.2 %)
 End-stage kidney disease 57,118 (5.5 %)
 Acute heart failure 35,631 (3.4 %)
 Cardiogenic shock 2,202 (0.2 %)
Procedures (>2 %)
 Coronary arteriogram 475,249 (45.4 %)
 Intraluminal dilation of one or several coronary arteries with endoprosthesis insertion 275 812 (26.3 %)
 Intraluminal dilation of one or several lower limbs artery with endoprosthesis insertion 54,420 (5.2 %)
 Global arteriography of the abdominal aorta and lower limbs 43,599 (4.2 %)
 Intraluminal dilation of internal iliac artery and/or external iliac artery with endoprosthesis insertion 32,631 (3.1 %)
 Selective arteriography of 2 or more cervico-cephalic axes 28,388 (2.7 %)
 Intraluminal dilation of one or more lower limbs artery without endoprosthesis insertion 25,875 (2.5 %)
Reasons for hospitalization (>5 %)
 Chronic ischaemic cardiomyopathy 189,474 (18.1 %)
 Angina pectoris 165,852 (15.8 %)
 Acute myocardial infarction 105,772 (10.1 %)
 Arterial embolism and thrombosis 75,983 (7.3 %)
 Atherosclerosis 71,147 (6.8 %)
Emergency department admission 151,826 (14.5 %)
Special unit admission  
 Intensive care 263,236 (25.1 %)
 Resuscitation 28,014 (3.6 %)
Deaths 19,624 (1.9 %)
Hospital status
 Private 442,957 (42.3 %)
 Public 604,372 (57.7 %)
  1. Data are presented as mean (SD) or n (%)
  2. SD = standard deviation