Table 3 Univariate analyses for the dependent variable, adequate (≥ 16) LN assessment in 449 patients with resected gastric adenocarcinoma
From: Insufficient lymph node assessment in gastric adenocarcinoma
Variables | Patients’ no. | No. of adequate (≥ 16) LN assessment (%) | P value |
|---|---|---|---|
Patients’ sex | |||
Male | 301 | 64 (21.3) | |
Female | 148 | 31 (20.9) | 0.938 |
Patients’ age | |||
< 60 years | 221 | 51 (21.3) | |
≥ 60 years | 228 | 44 (19.3) | 0.327 |
Primary tumor site | |||
Diffuse | 45 | 13 (28.9) | |
Non diffuse | 388 | 80 (20.6) | 0.201 |
Type of gastric surgery | |||
Total or near total gastrectomy | 246 | 72 (21.9) | |
Partial or subtotal gastrectomy | 167 | 23 (13.8) | < 0.001 |
Primary tumor stage | |||
T1–2 | 69 | 12 (17.4) | |
T3–4 | 348 | 83 (23.9) | 0.243 |
Node stage | |||
N0–2 | 286 | 43 (15.0) | |
N3 | 92 | 51 (55.4) | < 0.001 |
Tumor size | |||
≤ 6 cm | 263 | 48 (17.3) | |
> 6 cm | 124 | 45 (35.2) | < 0.001 |
Neoadjuvant treatment | |||
Not received | 433 | 94 (22.0) | |
Received | 16 | 1 (6.3) | 0.087 |
Surgical margin status | |||
Free | 305 | 66 (21.6) | |
Involved | 107 | 27 (25.2) | 0.444 |
Tumor grade | |||
Grades I–II | 234 | 49 (20.9) | |
Grade III | 198 | 46 (23.2) | 0.567 |
Lymphatic-vascular invasion | |||
Negative | 117 | 24 (20.5) | |
Positive | 305 | 70 (23.0) | 0.590 |
Perineural invasion | |||
Negative | 145 | 24 (16.6) | |
Positive | 276 | 70 (25.4) | 0.039 |
Histologic form | |||
Diffuse type | 182 | 44 (24.2) | |
Intestinal type | 234 | 48 (20.5) | 0.372 |