Table 5 Stratified analysis of observational indicators in the two groups
Number of tumours (< 3) | p | Number of tumours (≥ 3) | p | |||
|---|---|---|---|---|---|---|
Endoscopic group (n = 21) | Traditional open surgery group (n = 33) | Endoscopic group (n = 18) | Traditional open surgery group (n = 11) | |||
Intraoperative blood loss (mL) | 3.00 ± 2.20 | 3.96 ± 3.55 | 0.270 | 3.13 ± 2.71 | 4.09 ± 3.13 | 0.388 |
Total Incision length (cm) | 3.48 ± 0.42 | 3.61 ± 0.79 | 0.482 | 3.73 ± 0.34 | 4.42 ± 0.44 | ˂0.001 |
Operative time (min) | 35.71 ± 10.04 | 32.76 ± 10.80 | 0.318 | 57.00 ± 10.26 | 78.27 ± 7.63 | ˂0.001 |
Surgical cost (ten thousand RMB) | 0.54 ± 0.06 | 0.35 ± 0.03 | 0.000 | 0.48 ± 0.04 | 0.34 ± 0.03 | ˂0.001 |
Complications, n (%) | 2(9.5) | 6(18.2) | 0.461 | 2(11.1) | 7(63.6) | 0.011 |
Subcutaneous ecchymosis | 1(4.8) | 1(3.0) | 0(0) | 1(9.1) | ||
Incision dehiscence | 1(4.8) | 1(3.0) | 0(0) | 1(9.1) | ||
Subcutaneous hydrops | 0(0) | 2(6.1) | 1(5.6) | 2(18.2) | ||
Areola depression | 0(0) | 2(6.1) | 1(5.6) | 3(27.3) | ||