Research Article

Baseline Chronic Kidney Disease and Ischemic Method of Partial Nephrectomy Are Important Factors for the Short- and Long-Term Deterioration in Renal Function for Renal Cell Carcinoma Staged T1-T2: A Retrospective Single Center Study

Table 3

Multivariate analysis of predictive risk factors with backward selection () for 1-year short-term and 5-year long-term renal functional deterioration.

valueHazard ratio95.0% confidence interval
LowerUpper

Significant parameters at 1 year
Sex0.00431.4013.037324.649
Smoking volume0.0031.0611.0211.103
Albumin0.039.010.0001.793
Hemoglobin0.0771.619.9492.765
Ischemic method
 Warm0.076
 Cold0.026.053.004.699
 None0.034.077.007.827
ECOG
 Group 20.012
 Group 10.004.0002.0001.077
 Group 00.009.002.0001.203

Significant parameters at 5 years
Hypertension0.00316.9912.666108.298
Preoperative Albumin (mg/dl)0.01128.1722.177364.577
Calcium level (mg/dl)0.132.135.0101.829
De Ritis ratio0.02813.7721.330142.550
ASA class 10.001
ASA class 20.317.101.0018.968
ASA class 30.21216.464.2021343.216
Smoking volume (PY)0.0031.0811.0281.137
Predisposing CKD0.01513.1581.654104.659

ECOG, Eastern Cooperative Oncology Group score; De Ritis ratio, AST/APT; ASA, American Society of Anesthesiologist Score; CKD, chronic kidney disease.