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Table 2 Hazard ratios for in-ICU AKI existence, in relation to mortality

From: Association between recurrence of acute kidney injury and mortality in intensive care unit patients with severe sepsis

  Vital status (intra-hospital) Vital status (90-day) Vital status (end of follow-up)
Survival (N) Death (N) HR (95% CI) Survival (N) Death (N) HR (95% CI) Survival (N) Death (N) HR (95% CI)
Including patients without AKI (N = 400) 298 102     290 110     212 188    
 No AKI (n = 69) 62 7 1   61 8 1   47 22 1  
 AKI = 1 (n = 252) 192 60 1.68a 0.74 3.82 188 64 1.54a 0.71 3.34 139 113 1.00a 0.61 1.63
 AKI ≥2 (n = 79) 44 35 2.73a 1.15 6.51 41 38 2.57a 1.13 5.83 26 53 1.61a 0.93 2.77
Linear p trend    0.006      0.005      0.021   
Excluding patients without AKI (N = 331) 236 95     229 102     165 166    
 AKI = 1 (n = 252) 192 60 1   188 64 1   139 113 1  
 AKI ≥2 (n = 79) 44 35 2.48b 1.47 4.19 41 38 2.54b 1.55 4.16 26 53 1.97b 1.36 2.84
  1. aHR = hazard ratio adjusted for sex, age, mechanical ventilation necessity, APACHE score, and baseline estimated glomerular filtration rate (GFR)
  2. bHR = hazard ratio adjusted for sex, age, mechanical ventilation necessity, APACHE score, baseline estimated GFR, complete recovery and KDIGO stage