Table 2.

Univariable competing risks regression results for associations with eGFR recovery, overall and stratified by preoperative eGFR

VariableOverallPreoperative eGFR
≥60 ml/min per 1.73 m2<60 ml/min per 1.73 m2
HR (95% CI)P ValueHR (95% CI)P ValueHR (95% CI)P Value
Age at surgery0.99 (0.98 to 1.00)0.290.99 (0.97 to 1.00)0.090.97 (0.96 to 0.99)<0.001
BMIa0.99 (0.97 to 1.01)0.400.99 (0.97 to 1.02)0.620.99 (0.96 to 1.02)0.47
Sex0.020.160.15
 Male1.001.001.00
 Female1.34 (1.05 to 1.71)1.28 (0.91 to 1.81)1.27 (0.92 to 1.75)
Race0.380.330.78
 White1.001.001.00
 Other1.18 (0.82 to 1.69)1.27 (0.79 to 2.03)0.93 (0.54 to 1.58)
Diabetes1.31 (0.97 to 1.75)0.071.01 (0.63 to 1.63)0.961.39 (1.00 to 1.95)0.05
Hypertension0.87 (0.69 to 1.09)0.220.64 (0.46 to 0.88)0.0061.09 (0.76 to 1.56)0.65
Coronary artery disease0.93 (0.62 to 1.41)0.740.6 (0.28 to 1.28)0.191.04 (0.66 to 1.64)0.85
Smokingb0.330.260.93
 Never1.001.001.00
 Ever1.12 (0.89 to 1.42)1.21 (0.87 to 1.67)1.01 (0.74 to 1.39)
ASA grade0.310.850.41
 1, 21.001.001.00
 3, 51.13 (0.89 to 1.43)1.03 (0.75 to 1.42)1.15 (0.82 to 1.62)
Tumor sizec1.07 (1.04 to 1.10)<0.0011.11 (1.08 to 1.15)<0.0011.03 (0.99 to 1.08)0.13
T stage0.020.030.28
 Tx, T0, T11.001.001.00
 T21.46 (0.95 to 2.25)1.96 (1.08 to 3.55)1.30 (0.64 to 2.67)
 T3, T41.60 (1.15 to 2.22)1.93 (1.17 to 3.18)1.40 (0.93 to 2.12)
Type of surgery0.130.090.57
 Laparoscopic/robotic1.001.001.00
 Open0.81 (0.61 to 1.06)0.72 (0.50 to 1.05)0.89 (0.59 to 1.33)
  • HR, hazard ratio; 95% CI, 95% confidence interval; BMI, body mass index; ASA, American Society of Anesthesiologists.

  • a BMI value missing for one patient.

  • b Smoking values missing for two patients.

  • c Tumor size value missing for one patient.