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Table 1 Comparison of patients’ clinical information between the two groups

From: Clinical outcomes and effect on intraoperative blood loss and postoperative pain of patients undergoing retroperitoneal laparoscopic partial nephrectomy for complex renal tumors

Category RLPN group (n = 24) OPN group (n = 26) χ2/t P
Gender    0.002 0.963
 Male 14 (58.33%) 15 (57.69%)   
 Female 10 (41.67%) 11 (42.31%)   
Mean age (years old) 52.31 ± 4.61 53.18 ± 4.52 0.674 0.504
Mean BMI (kg/m2) 21.15 ± 1.03 21.23 ± 0.96 0.284 0.777
Tumor location    0.001 0.982
 Left side 13 (54.17%) 14 (53.85%)   
 Right side 11 (45.83%) 12 (46.15%)   
Tumor staging    0.244 0.621
T1a 16 (66.67%) 19 (73.08%)   
T1b 8 (33.33%) 7 (26.92%)   
Tumor diameter (cm) 3.16 ± 0.53 3.23 ± 0.48 0.490 0.626
Place of residence    0.002 0.963
 Urban area 10 (41.67%) 11 (42.31%)   
 Rural area 14 (58.33%) 15 (57.69%)