Table 3.
Univariate and multivariable models for mortality analysis
| Baseline covariates | OR for univariate model (95% CI) | P | OR for multivariable model (95% CI) | P |
|---|---|---|---|---|
| Age | ||||
| ≥80 y vs <80 y | 1.01 (0.58 to 1.78) | .94 | — | — |
| ASA scorea | ||||
| 3-4 vs 1–2 | 3.27 (1.76 to 6.09) | <.001 | — | — |
| CACI | ||||
| ≥7 vs 3–6 | 2.68 (1.54 to 4.63) | <.001 | 2.46 (1.39 to 4.32) | .002 |
| fTRSTa | ||||
| ≥2 vs <2 | 2.24 (1.30 to 3.87) | .004 | — | — |
| G8 scorea | ||||
| ≤14 vs >14 | 2.80 (1.30 to 6.01) | .008 | — | — |
| PS ECOGa | ||||
| ≥2 vs 0–1 | 2.57 (1.39 to 4.77) | .003 | — | — |
| Nutritional risk screening | ||||
| Mildly impaired vs normal | 1.78 (0.94 to 3.35) | .07 | 1.64 (0.85 to 3.17) | .13 |
| Mod + sev impaired vs normal | 3.36 (1.63 to 6.95) | .001 | 2.67 (1.27 to 5.66) | .01 |
| TUGa | ||||
| >20 s vs ≤20 s | 3.62 (1.51 to 8.67) | .004 | — | — |
| Surgical approach | ||||
| Open vs minimally invasive or robotic | 2.87 (1.64 to 5.02) | <.001 | 2.45 (1.35 to 4.46) | .003 |
| Type of surgeryb | ||||
| Palliative vs curative | 4.69 (2.19 to 10.00) | <.001 | — | — |
| Site of disease | ||||
| Other site of disease vs lower GI | 1.42 (0.81 to 2.48) | .21 | 1.13 (0.61 to 2.08) | .67 |
a
During stepwise process, this variable was not included due to association with CACI. ASA = American Society of Anesthesiologists; CACI = Charlson Age Comorbidity Index; CI = confidence interval; fTRST = Flemish version of the Triage Risk Screening Tool; G8 = Geriatric 8; GI = gastrointestinal; mod + sev = moderately and severely; OR = odds ratio; PS ECOG=Performance Status Eastern Cooperative Oncology Group; TUG = timed up and go.
b
During stepwise process, this variable was not included due to association with surgical approach.