Table 1.
Clinical and demographic characteristics of patients with negative laparoscopic staging at diagnosis and had R0 resection after preoperative therapy (n=164)
| Characteristics | Number of patients | Percentage (%) |
|---|---|---|
|
| ||
| Age | ||
| ≥60 | 90 | 54.9 |
| <60 | 74 | 45.1 |
|
| ||
| Gender | ||
| female | 62 | 37.8 |
| male | 102 | 62.2 |
|
| ||
| Primary tumor location | ||
| gastroesophageal junction | 61 | 37.2 |
| gastric | 103 | 62.8 |
|
| ||
| EUS T stage | ||
| T1–T2 | 19 | 11.6 |
| T3–T4 | 145 | 88.4 |
|
| ||
| EUS N status | ||
| node negative | 78 | 47.6 |
| node positive | 86 | 52.4 |
|
| ||
| Adenocarcinoma subtype | ||
| signet ring cell | 73 | 44.5 |
| others | 91 | 55.5 |
|
| ||
| Tumor grade | ||
| moderately differentiated | 32 | 19.5 |
| poorly differentiated | 132 | 80.5 |
|
| ||
| Lauren classification | ||
| diffuse | 82 | 53.2 |
| intestinal | 72 | 46.8 |
|
| ||
| ypT stage | ||
| T0–T1–T2 | 86 | 52.5 |
| T3–T4 | 78 | 47.5 |
|
| ||
| ypN status | ||
| node negative | 99 | 60.4 |
| node positive | 65 | 39.6 |
|
| ||
| yp Stage | ||
| pathologic complete remission | 22 | 13.4 |
| stage-I | 48 | 29.3 |
| stage-II | 67 | 40.8 |
| stage-III | 27 | 16.5 |
|
| ||
| Viable tumor in resected specimen | ||
| <50% | 101 | 61.5 |
| ≥50% | 63 | 38.5 |
|
| ||
| Lymphovascular invasion | ||
| negative | 81 | 57.9 |
| positive | 59 | 42.1 |