Table 2.
Univariate and multivariate analysis for the rectum GIST patients
| Characteristics | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|
| HR | 95% CI | p* | HR | 95% CI | p** | |
| Age | ||||||
| ≤ 60 | 1 | 1 | ||||
| > 60 | 2.9 | 1.5–5.4 | 0.001 | 2.6 | 1.4–5.0 | 0.003 |
| Race | ||||||
| White | 1 | |||||
| Black | 0.8 | 0.4–2.0 | 0.704 | |||
| Other | 0.8 | 0.4–1.6 | 0.517 | |||
| Differentiation | ||||||
| Well/moderately | 1 | 1 | ||||
| Poorly/undifferentiated | 3.5 | 1.3–9.8 | 0.017 | 2.4 | 0.8–6.8 | 0.106 |
| Unknown | 2.1 | 0.9–5.2 | 0.094 | 1.8 | 0.7–4.4 | 0.199 |
| Tumor size, cm | ||||||
| ≤ 3 | 1 | |||||
| > 3 | 0.3 | 0.0–2.4 | 0.247 | |||
| Unknown | 1.2 | 0.6–2.4 | 0.608 | |||
| T classification | ||||||
| T1–2 | 1 | 1 | ||||
| T3–4 | 1.2 | 1.1–6.2 | 0.043 | 1.7 | 1.3–2.9 | 0.024 |
| Unknown | 2.7 | 0.9–3.2 | 0.223 | 1.3 | 0.5–2.1 | 0.132 |
| N classification | ||||||
| N0 | 1 | |||||
| N+/unknown | 2.8 | 0.6–12.2 | 0.176 | |||
| Regional LN surgery | ||||||
| None | 1 | |||||
| Yes | 1.8 | 0.8–4.1 | 0.193 | |||
| Unknown | 1.6 | 0.7–3.7 | 0.237 | |||
| Chemotherapy | ||||||
| None | 1 | |||||
| Yes | 0.8 | 0.5–1.1 | 0.170 | |||
| Radiotherapy | ||||||
| None | 1 | |||||
| Yes | 0.7 | 0.3–1.1 | 0.184 | |||
95% CI 95% confidence interval, HR hazard ratio, LN lymph node
*p < 0.1 was considered significant in univariate Cox-Regression analysis
**p < 0.05 was considered significant in multivariate Cox-Regression analysis