Table 1 Comparison of clinicopathologic characteristics between patients with and without lymphovascular invasion
Variables | Whole study series | Propensity-score-matched pairs | |||
|---|---|---|---|---|---|
LVI (+) | LVI (-) | P | LVI (-) | P | |
Gender | 0.612 | 0.096 | |||
Male | 75 (75.8) | 290 (72.3) | 85 (85.9) | ||
Female | 24 (24.2) | 108 (27.7) | 14 (14.1) | ||
Age at surgery (years) | 61.32 ± 11.382 | 59.87 ± 11.099 | 0.247 | 59.21 ± 11.535 | 0.201 |
Tumor size (cm) | 5.872 ± 3.783 | 4.516 ± 2.586 | <0.001 | 5.840 ± 2.680 | 0.446 |
Type of gastrectomy | <0.001 | 0.628 | |||
Distal | 44 (43.4) | 236 (59.3) | 39 (39.4) | ||
Proximal | 26 (26.3) | 109 (27.4) | 27 (27.3) | ||
Total | 29 (29.3) | 53 (13.3) | 33 (33.3) | ||
Tumor location | 0.514 | 0.280 | |||
Low | 46 (46.5) | 210 (52.8) | 36 (36.4) | ||
Middle | 8 (8.1) | 39 (9.8) | 14 (14.1) | ||
Upper | 33 (33.3) | 13 (4.4) | 35 (35.4) | ||
Diffuse | 12 (12.1) | 36 (12.1) | 14 (14.1) | ||
Lauren’s classification | 0.820 | 0.664 | |||
Intestinal | 40 (40.4) | 167 (42.0) | 45 (45.5) | ||
Diffuse | 59 (59.6) | 231 (58.0) | 54 (54.5) | ||
Depth of invasion | 0.014 | <0.001 | |||
T1 | 3 (3.0) | 31 (7.8) | 13 (13.1) | ||
T2 | 10 (10.1) | 84 (21.1) | 26 (26.3) | ||
T3 | 15 (15.2) | 56 (18.8) | 23 (23.2) | ||
T4 | 71 (71.7) | 227 (57.0) | 37 (37.4) | ||
LNs | 0.166 | 0.618 | |||
1–3 | 17 (17.2) | 43 (10.8) | 16 (16.2) | ||
4–10 | 35 (35.4) | 140 (35.2) | 32 (32.3) | ||
11–15 | 12 (12.1) | 84 (21.1) | 20 (20.2) | ||
16–25 | 20 (20.2) | 82 (20.6) | 17 (17.2) | ||
≥ 26 | 15 (15.1) | 49 (12.3) | 14 (14.1) | ||
Adjuvant chemotherapy | 0.817 | 0.147 | |||
No | 13 (13.1) | 108 (27.1) | 37 (37.4) | ||
Yes | 86 (86.9) | 290 (72.9) | 62 (62.6) | ||