Table 1. Descriptive characteristics of the study cohort (IQR: interquartile range; Nº: number).
| Characteristics | Values |
|---|---|
| Age, years, median (IQR) | 66 (57–74) |
| Gender, n (%) Female Male |
138 (44.5%) 172 (55.5%) |
| Type of gastric surgery, n (%) Subtotal gastrectomy Total gastrectomy Other procedures |
158 (51%) 146 (47.1%) 6 (1.9%) |
| Type of lymph node dissection (n = 232), n (%) D2 D1+ D1 |
84 (36.2%) 141 (60.8%) 7 (3%) |
| Neoadjuvant chemotherapy, n (%) No Yes |
290 (93.5%) 20 (6.5%) |
| Adjuvant chemotherapy, n (%) No Yes |
212 (68.3%) 98 (31.7%) |
| Size of the tumour, cm, median (IQR) | 4.5 (3–7) |
| Lymphovascular invasion, n (%) No Yes |
117 (37.8%) 193 (62.2%) |
| Perineural invasion, n (%) No Yes |
167 (53.9%) 143 (46.1%) |
| Multifocality, n (%) No Yes |
295 (95.2%) 15 (4.8%) |
| Histological subtype, n (%) Intestinal Mixed Signet ring cells Mucinous |
171 (55.2%) 72 (23.2%) 64 (20.6%) 3 (1%) |
| pT, n (%) pT1a pT1b pT2 pT3 pT4a pT4b |
32 (10.3%) 58 (18.7%) 54 (17.4%) 100 (32.2%) 59 (19%) 7 (2.3%) |
| Nº of retrieved lymph nodes, median (IQR) | 30 (23–40) |
| Nº of positive lymph nodes, median (IQR) | 5 (0–5) |
| pN, n (%) pN0 pN1 pN2 pN3a pN3b |
147 (47.4%) 57 (18.4%) 34 (11%) 49 (15.8%) 23 (7.4%) |