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Table 3 The observations for composite endpoints

From: Kidney function decline after a non-dialysis-requiring acute kidney injury is associated with higher long-term mortality in critically ill survivors

Composite outcome Eligible patients (number) Observation period*
(days)
Outcome events Median event-free survival time (days)
    CKD-entry events before death Death events before CKD outcome Composite events  
Stage 3 CKD or death 187 306 (178.5, 763.5) 93 (49.7) 10 (5.3) 103 (56.3) 685
Stage 4 CKD or death 374 509.5 (258.2, 957) 92 (24.6) 50 (13.4) 142 (38.0) 1319
Stage 5 CKD or death 421 631 (298, 1074) 35 (8.3) 91 (21.6) 126 (29.9) 1743
ESRD or death 634 692.5 (309.8, 1285) 13 (2.1) 202 (31.9) 215 (33.9) 2,048
  1. *Observation period is presented as the median (25th, 75th percentile); event is presented as the number and corresponding percentage (%)
  2. CKD: chronic kidney disease; ESRD: end-stage renal disease.