Table 2.
Relationship between RDW and all-cause mortality in Cox model before and after adjustment.
| All subjects (N = 18279) | AKI stage 1 (N = 5557) | AKI stage 2 (N = 6798) | AKI stage 3 (N = 5924) | |||||
|---|---|---|---|---|---|---|---|---|
| HR (95% CI) | P | HR (95% CI) | P | HR (95% CI) | P | HR (95% CI) | P | |
| Unadjusted RDW | 1.219 (1.211, 1.228) | <0.01 | 1.214 (1.197, 1.230) | <0.01 | 1.202 (1.185, 1.218) | <0.01 | 1.231 (1.217, 1.245) | <0.01 |
| RDW adjusted for | ||||||||
| APS III | 1.173 (1.164, 1.182) | <0.01 | 1.185 (1.168, 1.202) | <0.01 | 1.172 (1.155, 1.189) | <0.01 | 1.159 (1.144, 1.174) | <0.01 |
| MLODS | 1.194 (1.185, 1.203) | <0.01 | 1.193 (1.176, 1.210) | <0.01 | 1.190 (1.174, 1.207) | <0.01 | 1.185 (1.171, 1.200) | <0.01 |
| SOFA | 1.187 (1.178, 1.196) | <0.01 | 1.189 (1.172, 1.207) | <0.01 | 1.189 (1.173, 1.206) | <0.01 | 1.173 (1.158, 1.187) | <0.01 |
| OASIS | 1.213 (1.204, 1.222) | <0.01 | 1.225 (1.208, 1.242) | <0.01 | 1.199 (1.182, 1.216) | <0.01 | 1.202 (1.188, 1.217) | <0.01 |
| SIRS | 1.222 (1.211, 1.229) | <0.01 | 1.215 (1.198, 1.232) | <0.01 | 1.202 (1.186, 1.219) | <0.01 | 1.228 (1.214, 1.242) | <0.01 |
Note: AKI, acute kidney injury; HR, hazard ratio; CI, confidence interval; SE, standard error; RDW, red blood cell distribution width; APS III, acute physiology and chronic health evaluation III; MLODS, modified logistic organ dysfunction system; SOFA, sequential organ failure assessment; OASIS, oxford acute severity of illness score; SIRS, systemic inflammatory response syndrome.