The significance of preoperative serum carcinoembryonic antigen levels in the prediction of lymph node metastasis and prognosis in locally advanced gastric cancer: a retrospective analysis

Table 4 Diagnostic efficiency of conventional methods, CEA used alone and their combined use for distinguishing lymph node metastasis from gastric cancer patients

Methods	Sensitivity	Specificity	Positive predictive value	Negative predictive value	Accuracy	AUC (95%CI)	P value
CEA > 3.4 ng/ml	0.527	0.826	0.858	0.466	0.627	0.677(0.612–0.742)	< 0.001^a
Imaging examination	0.690	0.957	0.97	0.607	0.779	0.823(0.774–0.873)	< 0.001^b
Imaging examination + CEA	0.853	0.794	0.892	0.73	0.833	0.88(0.843–0.918)

ISSN: 1471-230X