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Table 4 Correlations between the preoperative CEA levels and the site of recurrence in stage II rectal cancer and colon cancer

From: Left colon as a novel high-risk factor for postoperative recurrence of stage II colon cancer

 Rectal Cancer CEA ( ng/ml)Colon Cancer CEA ( ng/ml)
 CEA<5CEA ≥5p-ValueCEA <5CEA ≥5p-Value
n = 191n = 170n = 389n = 219
Liver metastasis
 Negative187 (97.91%)161 (94.71%) 381 (97.94%)209 (95.43%) 
 Positive4 (2.09%)9 (5.29%)0.108 (2.06%)10 (4.57%)0.07
Lung metastasis
 Negative187 (97.91%)163 (95.88%) 384 (98.71%)214 (97.72%) 
 Positive4 (2.09%)7 (4.12%)0.265 (1.29%)5 (2.28%)0.35
Local recurrence
 Negative185 (96.08%)157 (92.35%) 384 (98.71%)213 (97.26%) 
 Positive6 (3.92%)13 (7.65%)0.0285 (1.29%)6 (2.74%)0.96
Peritoneal dissemination
 Negative190 (99.48%)169 (99.41%) 386 (99.23%)213 (97.26%) 
 Positive1 (0.52%)1 (0.59%)0.933 (0.77%)6 (2.74%)0.053