Table S3. Multivariate analysis for SM with preoperative data.
| Factors | Univariate analysis | |||
|---|---|---|---|---|
| P | HR | 95% CI | ||
| Lower | Upper | |||
| Sex | ||||
| Male | Ref. | 1 | – | |
| Female | 0.429 | 0.819 | 0.499 | 1.343 |
| Age | ||||
| CV | 0.221 | 1.012 | 0.993 | 1.031 |
| BMI | ||||
| CV | 0.804 | 1.007 | 0.951 | 1.067 |
| Weight loss | – | |||
| − | Ref. | 1 | – | |
| + | 0.260 | 0.701 | 0.377 | 1.301 |
| Hematemesis | ||||
| − | Ref. | 1 | – | |
| + | 0.458 | 1.781 | 0.388 | 8.179 |
| Melena | ||||
| − | Ref. | 1 | – | |
| + | 0.791 | 1.128 | 0.463 | 2.748 |
| Location | ||||
| Upper third | Ref. | 1 | – | |
| Middle third | 0.101 | 0.585 | 0.309 | 1.110 |
| Lower third | 0.719 | 0.891 | 0.475 | 1.671 |
| Size | ||||
| CV | 0.000 | 1.364 | 1.146 | 1.623 |
| Gross pattern | ||||
| IIa | Ref. | 1 | – | |
| IIb | 0.523 | 0.698 | 0.231 | 2.104 |
| IIc | 0.796 | 0.877 | 0.326 | 2.359 |
| III | 0.512 | 0.442 | 0.038 | 5.083 |
| UL | ||||
| − | Ref. | 1 | – | |
| + | 0.005 | 2.287 | 1.291 | 4.050 |
| UDC grade | ||||
| U1 | Ref. | 1 | – | |
| U2 | 0.055 | 0.361 | 0.128 | 1.021 |
| U3 | 0.001 | 0.241 | 0.102 | 0.567 |
| SRC grade | ||||
| S0 | Ref. | 1 | – | |
| S1 | 0.041 | 0.574 | 0.337 | 0.978 |
−, absence; +, presence. CV, continuous variable; Ref., reference; BMI, body mass index; UL, ulcerative lesion; UDC, undifferentiated component; SRC, signet ring cell.