CEACAM5 and neoplasm: In the Joint model, the significant prognostic factors were baseline age (HR, 1.039; 95% CI, 1.025–1.054), poor-differentiated tumor (HR, 2.600; 95% CI 1.446–4.675) and log2 (predicted CEA) (HR, 1.551; 95% CI 1.488–1.617).