Table 1: Baseline patients’ features and tumor characteristics.

TLPNRLPNP

No. pts6687
Mean age ± SD (years)58 ± 1359 ±110.80
Sex gender (%)
 Male57670.15
 Female4333
Mean ASA score ± SD1.67 ± 0.621.55 ± 0.640.74
Mean preoperative serum creatinine ± SD (μmol/L)99 ± 3193 ± 320.27
Mean BMI ± SD (kg/m2)24.99 ± 4.2624.87 ± 3.920.75
Mean tumor size ± SD (cm)2.64 ± 1.072.71 ± 1.250.67
Tumor location (%)
 Anterior6028<0.001
 Posterior1049<0.001
 Lateral8230.15
Tumor pole (%)
 Upper38220.18
 Mid24370.38
 Lower38410.72
Exophytic tumor mass (%)
 >50%10140.39
 Between 25% and 50 %53810.37
 Endophytic3750.07
Median nephrometry score7.156.090.03