Table 1.
Multivariate analysis for the risk of complications
| Estimate | OR (CI) | Standard error | Z value | P value | |
|---|---|---|---|---|---|
| Age in years | 0.017 | 1.02 (0.98–1.05) | 0.019 | 0.917 | 0.359 |
| Sex | |||||
| Sex, female | NA | 1.00 (reference) | NA | NA | NA |
| Sex, male | 0.858 | 2.36 (0.93–5.98) | 0.474 | 1.809 | 0.070 |
| BMI | 0.000 | 1.00 (0.91–1.10) | 0.048 | −0.01 | 0.992 |
| Number of comorbidities | −0.086 | 0.92 (0.55–1.53) | 0.261 | −0.328 | 0.743 |
| ASA | 0.834 | 2.30 (1.00–5.29) | 0.424 | 1.966 | 0.049 |
| Setting | |||||
| Acute | NA | 1.00 (reference) | NA | NA | NA |
| Elective | −1.38 | 0.25 (0.05–1.27) | 0.825 | −1.672 | 0.095 |
| Screening | −2.382 | 0.09 (0.01–0.76) | 1.073 | −2.22 | 0.026 |
| Location of primary tumor | |||||
| Colon | NA | 1.00 (reference) | NA | NA | NA |
| Rectum | 0.693 | 2.00 (0.72–5.53) | 0.519 | 1.335 | 0.182 |
| Neo-adjuvant therapy | 0.415 | 1.51 (0.41–5.62) | 0.669 | 0.62 | 0.536 |
| Tumor stage | 0.008 | 1.01 (0.66–1.55) | 0.218 | 0.038 | 0.970 |
| Week of surgery | 0.025 | 1.03 (0.94–1.12) | 0.044 | 0.563 | 0.573 |
Table showing results of the multivariate analysis for the risk of patients developing postoperative complications. Abbreviations: ASA American Society of Anesthesiologist, BMI body mass index, CI confidence interval, COVID-19 Coronavirus disease 2019, NA not applicable, OR odds ratio