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Table 2 Baseline characteristics of the cohort stratified by death during the follow-up period

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

Variable Death Alive p-value
  N = 1,475 N = 2.908  
Demographics and health utilization    
Age, mean (SD) 68 (±14) 56 (±17) <0.01
Female gender, n (%) 589 (40) 1 040 (41) 0.61
Rural locale, n (%) 206 (14) 395 (14) 0.73
Pre-admission nephrology consultation, n (%)a 441 (30) 563 (22) <0.01
Pre-admission cardiology consultation, n (%)a 750 (51) 1 085 (43) <0.01
Comorbid disease b    
Charlson comorbidity score, median (IQR) 4 (2–5) 2 (0–3) <0.01
Coronary artery disease, n (%) 842 (57) 1 091 (43) <0001
Congestive heart failure, n (%) 718 (49) 721 (28) <0.01
Cerebrovascular disease, n (%) 349 (24) 364 (14) <0.01
Diabetes, n (%) 700 (48) 1012 (40) 0.08
Malignancy, n (%) 715 (49) 845 (33) <0.01
Liver disease, n (%) 214 (15) 430 (17) 0.05
Peripheral vascular disease, n (%) 82 (6) 33 (1) <0.01
Chronic kidney disease, n (%) 286 (19) 265 (10) <0.01
Hypertension, n (%) 1 122 (76) 1616 (63) <0.01
Dementia, n (%) 182 (12) 152 (6) <0. 01
Hematuria, n (%) 457 (31) 603 (24) 0.5
Proteinuria, n (%) 6 (0.4) 7 (03) <0.01
Conditions during index hospitalization    
Sepsis, n (%) 280 (19) 527 (21) 0.2
Aortic aneurysm repair, n (%) 69 (5) 86 (3) 0.04
Cardiac surgery, n (%) 152 (10) 320 (13) 0.03
Mechanical ventilation, n (%) 705 (48) 1 504 (59) <0.01
Hospital type    
Teaching hospital, n (%) 746 (48) 1 406 (51) 0.15
  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.