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Operation related variables
| Parameter | NOSES (n = 69) | CL (n = 69) | P-value |
|---|---|---|---|
| Operation time [min] | 241.18 ±75.57 | 202.51 ±71.24 | < 0.001 |
| Blood loss [ml] | 95.13 ±56.14 | 98.60 ±52.63 | 0.301 |
| No. of lymph nodes | 16.58 ±7.44 | 16.36 ±7.95 | 0.721 |
| Positive surgical margin | 0 | 0 | – |
| Tumor rupture | 0 | 0 | – |
NOSES – natural orifice specimen extraction surgery group, CL – conventional laparoscopic surgery group.
