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Table 4 Multivariate cox regression analysis for the risk factors of 3-year mortality

From: Preoperative hidden renal dysfunction add an age dependent risk of progressive chronic kidney disease after cardiac surgery

  Age < 65 years Age ≥ 65 years
OR 95%CI P-value OR 95%CI P-value
Age 1.030 1.001–1.052 0.044    
DM 4.090 2.476–6.751 <  0.01 3.670 2.475–5.455 <  0.01
Postoperative AKI 4.970 2.849–8.661 <  0.01    
ICU stay 1.002 1.001–1.004 <  0.01 1.002 1.001–1.002 <  0.01
eGFR ≥  90 mL/min/1.73 m2     Reference
60 ≤ eGFR < 90 mL/min/1.73 m2     1.160 0.726–1.843 0.541
eGFR < 60 mL/min/1.73 m2     2.190 1.118–4.316 0.022
  1. Abbreviations: AKI acute kidney injury, ICU intensive care unit, eGFR estimated glomerular filtration rate