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Table 1 Patients’ basic characteristics of the two surgical groups

From: Transurethral needle electrode resection and transurethral holmium laser resection of bladder cancer

Index Transurethral needle electrode resection (n = 52) Transurethral holmium laser resection (n = 51) Total (n = 103) P
Age (year) (mean ± sd) 55.8 ± 12.8 58.8 ± 12.9 57.3 ± 12.9 0.236
Gender [n (%)]     
 Male 34 (65.4) 3 4(66.7) 68 (66.0) 0.891
 Female 18 (34.6) 17 (33.3) 35 (34.0)
Height (cm) (mean ± sd) 166.6 ± 11.2 163.3 ± 10.0 165.0 ± 10.7 0.120
Weight (kg) (mean ± sd) 64.5 ± 14.9 60.4 ± 12.6 62.4 ± 13.9 0.133
BMI (mean ± sd) 23.0 ± 3.8 22.5 ± 3.5 22.8 ± 3.6 0.487
Tumor size (mm) (mean ± sd) 25.7 ± 12.6 25.7 ± 13.9 25.7 ± 13.2 0.998
Tumor size grouping [n (%)]     
 < 3 cm 37 (71.2) 33 (64.7) 70 (68.0) 0.483
 ≥ 3 cm 15 (28.8) 18 (35.3) 33 (32.0)
Tumor focality [n (%)]     
 Unifocal 43 (82.7) 43 (84.3) 86 (83.5) 0.825
 Multifocal 9 (17.3) 8 (15.7) 17 (16.5)
Tumor location [n (%)]     
 Lateral wall 31 (59.6) 31 (60.8) 62 (60.2) 0.993
 Trigone 6 (11.5) 5 (9.8) 11 (10.7)
 Dome 7 (13.5) 7 (13.7) 14 (13.6)
 Posterior wall 3 (5.8) 3 (5.9) 6 (5.8)
 Anterior wall 3 (5.8) 2 (3.9) 5 (4.9)
 Less than 1.5 cm from the ureter mouth 2 (3.8) 3 (5.9) 5 (4.9)
Pathological classification [n (%)]     
 Ta 33 (63.5) 29 (56.9) 62 (60.2) 0.791
 T1 7 (13.5) 8 (15.7) 15 (14.6)
 Tis 12 (23.1) 14 (27.5) 26 (25.2)
Preoperative tumor grade [n (%)]     
 G1 44 (84.6) 43 (84.3) 87 (84.5) 1.000
 G2 8 (15.4) 7 (13.7) 15 (14.6)
 G3 0 (0.0) 1 (2.0) 1 (1.0)
Postoperative tumor grade [n (%)]     
 G1 44 (84.6) 43 (84.3) 87 (84.5) 1.000
 G2 7 (13.5) 7 (13.7) 14 (13.6)
 G3 1 (1.9) 1 (2.0) 2 (1.9)
Comorbid disease [n (%)]     
 None 30 (57.7) 29 (56.9) 59 (57.3) 1.000
 Diabetes 6 (11.5) 6 (11.8) 12 (11.7)
 High blood pressure 8 (15.4) 7 (13.7) 15 (14.6)
 Coronary heart disease (CHD) 4 (7.7) 5 (9.8) 9 (8.7)
 Prostatic hyperplasia 4 (7.7) 4 (7.8) 8 (7.8)