Table 1. Univariate and multivariate analyses of high-risk gastrointestinal stromal tumor patients for DFS.
| Clinicopathology feature | Univariate | Multivariate | |||||
|---|---|---|---|---|---|---|---|
| Coef | HR (95% CI) | P | Coef | HR (95% CI) | P | ||
| Sex (male) | 0.450 | 1.568 (0.645–3.814) | 0.321 | – | – | – | |
| Necrosis (yes) | 1.033 | 2.810 (1.152–6.851) | 0.023 | 0.825 | 2.281 (0.930–5.595) | 0.072 | |
| Location (non-stomach) | −0.078 | 0.925 (0.408–2.101) | 0.853 | – | – | – | |
| Size | −0.041 | 0.960 (0.879–1.048) | 0.357 | – | – | – | |
| Mitotic figure (≥9) | 1.339 | 3.815 (1.503–9.682) | 0.005 | 0.822 | 2.275 (0.865–5.985) | 0.096 | |
| Ki67 (≥5) | 1.875 | 6.524 (2.398–17.748) | 0.000 | 1.529 | 4.615 (1.624–13.114) | 0.004 | |
| Age | 0.020 | 1.021 (0.992–1.050) | 0.163 | – | – | – | |
DFS, disease-free survival; Coef, coefficient; HR, hazard ratio; CI, confidence interval.