Table 1.
Clinical characteristics of included patients with gastric cancer
| Characteristics | Total | Training dataset (n=268) | Testing dataset (n=114) |
|---|---|---|---|
| Sex | |||
| Female | 136(35.6) | 97(36.19) | 39(34.21) |
| Male | 246(64.4) | 171(63.81) | 75(65.79) |
| Histological type | |||
| Stomach Adenocarcinoma | 204(53.4) | 139(51.9) | 65(57.0) |
| Stomach- Intestinal Adenocarcinoma | 177(46.3) | 128(47.8) | 49(43.0) |
| Other | 1(0.26) | 1(0.37) | |
| Stage | |||
| Stage I | 50(13.1) | 30(11.2) | 20(17.6) |
| Stage II | 127(33.2) | 94(35.1) | 33(28.9) |
| Stage III | 172(45.0) | 121(45.1) | 51(44.7) |
| Stage IV | 33(8.64) | 23(8.58) | 10(8.77) |
| Metastasis status | |||
| M0 | 344(90.05) | 243(90.67) | 101(88.6) |
| M1 | 22(5.76) | 13(4.85) | 9(7.89) |
| MX | 16(4.19) | 12(4.48) | 4(3.51) |
| Age | |||
| <=65 | 178(46.6) | 120(44.78) | 58(50.88) |
| >65 | 201(52.62) | 145(54.1) | 56(49.12) |
| NA | 3(0.79) | 3(1.12) | |
| Anatomic sites | |||
| Antrum/Distal | 141(36.91) | 104(38.81) | 37(32.46) |
| Cardia/Proximal | 52(13.61) | 34(12.69) | 18(15.79) |
| Fundus/Body | 142(37.17) | 101(37.69) | 41(35.96) |
| Gastroesophageal Junction | 38(9.95) | 20(7.46) | 18(15.79) |
| Other | 9(2.3) | 9(3.3) | |