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Table 5 Multivariate cox regression analysis for the risk factors of progressive CKD

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 1.040 1.010–1.064 0.007 1.050 1.008–1.090 0.018
DM 3.310 2.020–5.435 <  0.01 3.510 2.381–5.173 <  0.01
eGFR ≥  90 mL/min/1.73 m2 Reference Reference
60 ≤ eGFR < 90 mL/min/1.73 m2 1.690 1.071–2.669 0.024 1.380 0.856–2.209 0.187
eGFR < 60 mL/min/1.73 m2 2.890 1.204–6.964 0.018 2.870 1.472–5.580 <  0.01
Postoperative AKI 4.940 3.035–8.042 <  0.01    
ICU stay 1.002 1.001–1.004 <  0.01 1.002 1.001–1.003 <  0.01
  1. Abbreviations: eGFR estimated glomerular filtration rate, AKI acute kidney injury, ICU intensive care unit, CKD chronic kidney disease