TABLE 1.
Baseline clinical characteristics of SGC‐NLNM patients in our study
| Variable | M0 | M1 | ||
|---|---|---|---|---|
| (n = 3024) | % | (n = 269) | % | |
| Age at diagnosis | ||||
| ≤60 | 856 | 28.31 | 106 | 39.41 |
| >60 | 2168 | 71.69 | 163 | 60.59 |
| Gender | ||||
| Female | 1139 | 37.67 | 94 | 34.94 |
| Male | 1885 | 62.33 | 175 | 65.06 |
| Race | ||||
| White | 1909 | 63.13 | 188 | 69.89 |
| Black | 362 | 11.97 | 49 | 18.22 |
| Other | 753 | 24.90 | 32 | 11.90 |
| Marriage | ||||
| Married | 1844 | 60.98 | 162 | 60.22 |
| Unmarried | 1040 | 34.39 | 100 | 37.17 |
| Unknown | 140 | 4.63 | 7 | 2.60 |
| Primary site | ||||
| Antrumy/Pylorus | 911 | 30.13 | 32 | 11.90 |
| Body | 312 | 10.32 | 36 | 13.38 |
| Cardia | 972 | 32.14 | 106 | 39.41 |
| Fundus | 85 | 2.81 | 16 | 5.95 |
| Lesser curvature | 304 | 10.05 | 10 | 3.72 |
| Greater curvature | 112 | 3.70 | 10 | 3.72 |
| Overlapping/Nos | 328 | 10.85 | 59 | 21.93 |
| Histology | ||||
| Intestinal type | 2379 | 78.67 | 207 | 76.95 |
| Diffuse type | 645 | 21.33 | 62 | 23.05 |
| Grade | ||||
| Well/Moderate | 1651 | 54.60 | 105 | 39.03 |
| Poorly/Undifferentiated | 1373 | 45.40 | 164 | 60.97 |
| Tumor size | ||||
| ≤2 cm | 1543 | 51.03 | 22 | 8.18 |
| ≤3 cm | 439 | 14.52 | 32 | 11.90 |
| ≤5 cm | 321 | 10.62 | 33 | 12.27 |
| >5 cm | 135 | 4.46 | 26 | 9.67 |
| Diffuse/Unknown | 586 | 19.38 | 156 | 57.99 |
| Depth | ||||
| T1a | 1569 | 51.88 | 210 | 78.07 |
| T1b | 1455 | 48.12 | 59 | 21.93 |
| Year of diagnosis | ||||
| 2004–2009 | 1381 | 45.67 | 97 | 36.06 |
| 2010–2015 | 1643 | 54.33 | 172 | 63.94 |
≤3 cm, 2 cm < tumor size ≤ 3 cm; ≤5 cm, 3 cm < tumor size ≤ 5 cm.
Abbreviations: Nos, not otherwise specified; SGC‐NLNM, superficial gastric cancer‐no lymph node metastasis.