Table 8.
Comparison of the 2 surgery methods in different tumor size
| Variables | Tumor size ≤5 cm
|
Tumor size >5 cm
|
||||
|---|---|---|---|---|---|---|
| RG (n=83) | LG (n=84) | P-value | RG (n=29) | LG (n=28) | P-value | |
| Age (years) | 54.7±11.6 | 54.9±11.0 | 0.917 | 58.1±10.1 | 59.8±10.8 | 0.545 |
| Gender (male/female) | 57/26 | 62/22 | 0.463 | 21/8 | 17/11 | 0.349 |
| Body mass index | 23.7±3.0 | 23.7±3.0 | 0.953 | 23.4±2.5 | 23.1±3.2 | 0.621 |
| Comorbidity (present/absent) | 15/68 | 16/68 | 0.871 | 8/21 | 8/20 | 0.934 |
| Operation time (min) | 248.8±60.8 | 219.5±41.3 | 0.000 | 298.5±58.8 | 252.8±50.1 | 0.003 |
| Estimated blood loss (mL) | 171.5±61.9 | 232.6±141.6 | 0.000 | 201.4±76.0 | 241.4±135.4 | 0.172 |
| No. of retrieved lymph nodes | 28.2±9.9 | 27.0±8.5 | 0.399 | 33.2±7.4 | 30.0±9.1 | 0.140 |
| Time to first flatus (days) | 2.6±0.7 | 2.7±1.1 | 0.347 | 2.8±0.5 | 3.1±1.2 | 0.144 |
| Time to start liquid diet (days) | 1.6±0.7 | 1.7±0.5 | 0.953 | 1.6±0.4 | 1.9±0.7 | 0.052 |
| Time to start soft diet (days) | 3.6±1.8 | 3.8±1.3 | 0.389 | 3.4±0.7 | 4.1±2.1 | 0.119 |
| Postoperative hospital stay (days) | 6.9±2.6 | 6.8±3.1 | 0.810 | 6.8±1.5 | 7.7±5.4 | 0.378 |
| Overall complications (%) | 11 (13.3) | 8 (9.5) | 0.448 | 4 (13.8) | 5 (17.9) | 0.954 |
| Cost of hospitalization (RMB) | 91,300.9±6265.8 | 68,616.0±5675.8 | 0.000 | 95,410.6±3935.9 | 72,058.0±5845.2 | 0.000 |
Note: Data are presented as mean ± standard deviation.
Abbreviations: LG, laparoscopic gastrectomy; RG, robotic gastrectomy.