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Table 1 Baseline characteristics of the cohort stratified by progression to chronic dialysis

From: Predictors of progression to chronic dialysis in survivors of severe acute kidney injury: a competing risk study

Variable Chronic dialysis No chronic dialysis p-value
  N = 356 N = 4,027  
Demographics and health utilization    
Age, mean (SD) 64 (±14) 61 (±17) <0.01
Female gender, n (%) 143 (40) 1 629 (41) 0.92
Rural locale 53 (15) 548 (14) 0.58
Pre-admission nephrology consultation, n (%) 213 (60) 1 004 (25) <0.01
Pre-admission cardiology consultation, n (%) 216 (61) 1 835 (46) <0.01
Comorbid disease    
Charlson comorbidity score, median (IQR) 4 (2–6) 2 (1–4) <0.01
Coronary artery disease, n (%) 209 (59) 1 933 (48) <0.01
Congestive heart failure, n (%) 191 (54) 1 439 (36) <0.01
Cerebrovascular disease, n (%) 63 (18) 713 (18) 1
Diabetes, n (%) 218 (61) 1 712 (43) <0.01
Malignancy, n (%) 153 (43) 1 560 (39) 0.12
Liver disease, n (%) 27 (8) 644 (16) <0.01
Peripheral vascular disease, n (%) 21 (6) 115 (3) <0.01
Chronic kidney disease, n (%) 204 (57) 551 (14) <0.01
Hypertension, n (%) 309 (87) 2 738 (68) <0.01
Dementia, n (%) 25 (7) 334 (8) 0.40
Proteinuria, n (%) 9 (3) 13 (0.3) <0.01
Hematuria, n (%) 125 (35) 1 060 (26) <0.01
Conditions during index hospitalization    
Sepsis, n (%) 49 (14) 807 (20) <0.01
Aortic aneurysm repair, n (%) 10 (3) 155 (4) 0.32
Cardiac surgery, n (%) 10 (3) 155 (4) 0.32
Mechanical ventilation, n (%) 163 (46) 2 209 (55) <0.01
Hospital type    
Teaching Hospital, n (%) 173 (49) 1 980 (49) 0.84
  1. aIn the 5 years preceding hospital admission.
  2. bIn the 5 years preceding the hospital discharge date except chronic kidney disease which had a lookback period of 5 years preceding the hospital admission date.