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Table 2 Univariate and multivariate Cox proportional hazards regression models for RFS

From: Dickkopf-related protein 1, a new biomarker for local immune status and poor prognosis among patients with colorectal liver Oligometastases: a retrospective study

VariateNo. of caseHR (95% CI)P
DKK1 serum level
 Low281.000 (ref)
 High372.565 (1.117~5.888)0.026
Primary tumor node
 Negative331.000 (ref)
 Positive322.002 (0.920~4.358)0.080
Disease-free interval
  < 12 months531.000 (ref)
  ≥ 12 months120.618 (0.450~3.829)0.618
Preoperative CEA level (ng/L)
  ≤ 200631.000 (ref)
  > 20024.415 (0.574~33.988)0.154
Tumor size
  ≤ 5 cm601.000 (ref)
  > 5 cm53.944 (1.331~11.688)0.013
Multivariate
 DKK1 serum level
  Low 1.000 (ref)
  High 1.943 (0.786~4.803)0.150
 Tumor size
   ≤ 5 cm 1.000 (ref)
   > 5 cm 2.713 (0.883~8.331)0.262
 Primary tumor node
  Negative 1.000 (ref)
  Positive 1.519 (0.672~3.432)0.315