FIGURE 1.
Characteristics of patients
| Characteristics | All patients | Patients with no complications (G0) | Patients with complications (G1–G5) | p-value |
|---|---|---|---|---|
| Gender | ||||
| Male | 50 (71 %) | |||
| Female | 20 (29 %) | |||
| Age (years)a | 65.0 (10.7) [62.4–67.6] | 61.7 (9.8) [56.9–66.6] | 66.1 (10.9) [63.1–69.2] | 0.137 |
| Phase Angle (°)a | 5.23 (2.77) [5.0–5.5] | 5.64 (0.72) [5.3–6.0] | 5.09 (0.98) [4.8–5.4] | 0.036* |
| Location of the primary tumor (%) | ||||
| Colon | 17 (24,3) | 4 (22.2) | 13 (25.0) | |
| Rectosigmoid | 2 (2,9) | 1 (5.5) | 1 (1.9) | |
| Rectum | 45 (64,3) | 11 (61.1) | 34 (65.4) | |
| Anus | 1 (1,4) | 1 (5.5) | 0 (0) | |
| Breast | 1 (1,4) | 0 (0) | 1 (1.9) | |
| Ovary | 4 (5,7) | 1 (5.5) | 3 (5.8) | |
Odds for developing a complication and probabilities of developing a complication at different values of phase angle
| Phase Angle (°) | Odds of a complication | Probability of a complication (%) |
|---|---|---|
| 4.5 | 5.532 | 84.7 |
| 5.0 | 3.831 | 79.3 |
| 5.5 | 2.651 | 72.6 |
| 6.0 | 1.837 | 64.8 |
Mean age and mean phase angle in each Clavien Dindo grade
| Number of patients (%) | Age (years) a | Phase angle (°)a | |
|---|---|---|---|
| Grade 0 | 18 (26) | 61.7 [56.9–66.6] | 5.64 [5.28–6.00] |
| Grade I | 5 (7) | 56.0 [50.2–61.8] | 6.22 [5.64–6.80] |
| Grade II | 38 (54) | 67.1 [63.4–70.7] | 4.99 [4.67–5.31] |
| Grade III | 4 (6) | 62.2 [45.0–79.5] | 5.15 [3.41–6.88] |
| Grade IV | 5 (7) | 72.2 [60.5–83.9] | 4.64 [3.77–5.51] |
| Grade V | 0 (0) |
Contingency Table with the sensitivity and a specificity of the phase angle
| Phase angle < 5,5 | Phase angle ≥ 5,5 | ||
|---|---|---|---|
| Complication | 33 (true positive) | 19 (false negative) | 52 |
| No complication | 7 (false positive) | 11 (true negative) | 18 |
| 40 | 30 |