Table 1 The clinicopathologic features of patients with serosa-negative advanced gastric cancer (AGC) according to the type of omentectomy
Variable | Total omentectomy (n = 80) | Partial omentectomy (n = 66) | P | |
|---|---|---|---|---|
Age (years)a | 60.9 ± 11.2 | 62.2 ± 11.0 | 0.483 | |
Sex | Male | 56 (70) | 50 (75.8) | 0.438 |
Female | 24 (30) | 16 (24.2) | ||
Extent of resection | Total | 19 (23.8) | 12 (18.2) | 0.413 |
Distal | 61 (76.3) | 54 (81.8) | ||
Depth of invasion | pT2 | 28 (35) | 37 (56.1) | 0.011 |
pT3 | 52 (65) | 29 (43.9) | ||
Lymph node metastasis | 0 | 40 (50) | 34 (51.5) | 0.419 |
1 | 14 (17.5) | 8 (12.1) | ||
2 | 13 (16.3) | 16 (24.2) | ||
3a | 6 (7.5) | 6 (9.1) | ||
3b | 7 (8.8) | 2 (3.0) | ||
Tumor stage (UICC 7th) | Ib | 17 (21.3) | 23 (34.8) | 0.130 |
IIa | 30 (37.5) | 15 (22.7) | ||
IIb | 9 (11.3) | 11 (16.7) | ||
IIIa | 13 (16.3) | 12 (18.2) | ||
IIIb | 11 (13.8) | 5 (7.6) | ||
Tumor size (cm)a | 4.8 ± 2.5 | 4.4 ± 2.4 | 0.366 | |
Histologic type | Differentiated | 37 (46.3) | 24 (36.4) | 0.228 |
Undifferentiated | 43 (53.8) | 42 (63.6) | ||
Proximal margin (cm)a | 4.0 ± 2.1 | 3.7 ± 2.2 | 0.357 | |
Distal margin (cm)a | 5.3 ± 3.4 | 6.4 ± 4.2 | 0.083 | |
Lymphatic invasion | Absent | 27 (33.8) | 30 (45.5) | 0.149 |
Present | 53 (66.3) | 36 (54.5) | ||
Perineural invasion | Absent | 39 (48.8) | 40 (60.6) | 0.152 |
Present | 42 (51.3) | 26 (39.4) | ||