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. 2020 Mar 14;35(6):1055–1066. doi: 10.1007/s00384-020-03557-3

Table 4.

Univariate and multivariate Cox regression analyses of distant metastases

Univariate analysis Multivariate model
n 5-year rate 95% CI p** Hazard ratio 95% CI p
All 2158 16.7 15.1–18.3
Age (years)
  < 65 1079 16.5 14.3–18.7
  ≥ 65 1079 16.9 14.5–19.3 0.598
Sex
  Male 1351 17.9 15.7–20.1
  Female 807 14.6 12.1–17.1 0.051
ASA*
  ASA I-II 1498 15.5 13.5–17.5 1.0
  ASA III-IV 336 20.0 15.3–24.7 0.028 1.3 1.0–1.8 0.045
Tumour site
  Colon 990 12.9 10.7–15.1 1.0
  Rectum 1168 19.9 17.5–22.3 < 0.001 1.8 1.4–2.4 < 0.001
Stage (UICC)
  Stage I 573 6.3 4.1–8.5 1.0
  Stage II 535 13.1 10.2–16.0 2.5 1.7–3.8 < 0.001
  Stage III 500 28.8 24.7–32.9 4.7 3.3–6.9 < 0.001
  Stage y0 73 1.4 0–4.1 0.1 0.0–1.0 0.047
  Stage yI 164 8.8 4.5–13.1 1.0 0.6–1.8 0.941
  Stage yII 146 14.8 7.7–21.9 3.3 2.1–5.2 < 0.001
  Stage yIII 167 36.4 29.0–43.8 < 0.001 4.8 3.2–7.4 < 0.001
Clavien-Dindo classification
  0 1691 15.9 14.1–17.7 1.0
  I 141 17.4 10.7–24.1 1.0 0.7–1.6 0.878
  II 162 19.6 13.1–26.1 1.4 1.0–2.1 0.056
  III 112 21.0 13.2–28.8 1.7 1.1–2.5 0.020
  IV 52 23.7 11.4–36.0 0.066 1.2 0.6–2.5 0.543

ASA American Society of Anesthesiologists Classification; *ASA missing in 324 patients. **Log-rank test