Table 2 Short-term outcome among the early and delayed RRT groups, before and after inverse probability weighting of treatment
From: Timing of renal replacement therapy initiation by AKIN classification system
Before weighting | After IPTW weighting | ||||||
|---|---|---|---|---|---|---|---|
ED group ( n = 64) | LD group ( n = 86) | P -value | ED group | LD group | Average treatment effect (95% CI) | P -value | |
Duration of mechanical ventilation, days | 12.5 ± 9.8 | 18.0 ± 13.7 | 0.049 | 12.8 ± 7.8 | 18.9 ± 9.4 | -6.02 (-11.50 to -0.54) | 0.031 |
Length of ICU stay, days | 18.7 ± 12.5 | 24.7 ± 17.3 | 0.093 | 19.4 ± 11.5 | 25.4 ± 10.9 | -5.97 (-12.91 to 0.976) | 0.092 |
Time on RRT, days | 6.9 ± 4.6 | 8.9 ± 4.6 | 0.178 | 6.7 ± 4.9 | 9.7 ± 6.1 | -2.95 (-5.77 to -0.125) | 0.041 |
In-hospital mortality, n (%) | 33 (51.5) | 67 (77.9) | 0.001 | 51.2 | 81.7 | -30.5 (-14.4 to -45.2) | 0.002 |