The prognostic significance of pretreatment serum CEA levels in gastric cancer: a meta-analysis including 14651 patients

Carcinoembryonic antigen (CEA) is commonly used as a serum tumor marker in clinical practice; however, its prognostic value for gastric cancer patients remains uncertain. This meta-analysis was performed to assess the prognostic value of CEA and investigate CEA as a tumor marker. PubMed, EMBASE and...

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Published in:PloS one 2015-04, Vol.10 (4), p.e0124151-e0124151
Main Authors: Deng, Kai, Yang, Li, Hu, Bing, Wu, Hao, Zhu, Hong, Tang, Chengwei
Format: Article
Language:English
Subjects:
Analysis
Antigens
Cancer
Cancer patients
Carcinoembryonic antigen
Carcinoembryonic Antigen - blood
Colorectal cancer
Confidence intervals
Female
Gastric cancer
Gastroenterology
Health aspects
Health risks
Humans
Male
Medical ethics
Medical prognosis
Meta-analysis
Metastasis
Mortality
Multivariate analysis
Patients
Prognosis
Risk Factors
Serum levels
Stomach cancer
Stomach Neoplasms - blood
Stomach Neoplasms - diagnosis
Studies
Survival
Survival analysis
Tumor markers
Uncertainty analysis
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Yang, Li
Hu, Bing
Wu, Hao
Zhu, Hong
Tang, Chengwei
description Carcinoembryonic antigen (CEA) is commonly used as a serum tumor marker in clinical practice; however, its prognostic value for gastric cancer patients remains uncertain. This meta-analysis was performed to assess the prognostic value of CEA and investigate CEA as a tumor marker. PubMed, EMBASE and other databases were searched for potentially eligible studies. Forty-one studies reporting the prognostic effect of pretreatment serum CEA expression in gastric cancer patients were selected. Data on 14651 eligible patients were retrieved for the meta-analysis. Based on the data extracted from the available literature, the hazard ratio (HR) and 95% confidence interval (CI) for an adverse prognosis were estimated for gastric cancer patients with elevated pretreatment serum levels of CEA (CEA+) relative to patients with normal pretreatment CEA levels (CEA-). The CEA+ patients had a significantly poorer prognosis than the CEA- patients in terms of overall survival (OS: HR 1.716, 95% CI 1.594 - 1.848, P< 0.001), disease-specific survival (DSS: HR 1.940, 95% CI 1.563 - 2.408, P< 0.001), and disease-free survival (DFS: HR 2.275, 95% CI 1.836 - 2.818, P< 0.001). Publication bias and an influence of different cut-off values were not observed (all P> 0.05). In the pooled analyses of multivariate-adjusted HRs, the results suggested that pretreatment serum CEA may be an independent prognostic factor in gastric cancer (OS: HR 1.681, 95% CI 1.425 - 1.982; DSS: HR 1.900, 95% CI 1.441 - 2.505; DFS: HR 2.579, 95% CI 1.935 - 3.436). The meta-analysis based on the available literature supported the association of elevated pretreatment serum CEA levels with a poor prognosis for gastric cancer and a nearly doubled risk of mortality in gastric cancer patients. CEA may be an independent prognostic factor for gastric cancer patients and may aid in determining appropriate treatment which may preferentially benefit the CEA+ patients.
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however, its prognostic value for gastric cancer patients remains uncertain. This meta-analysis was performed to assess the prognostic value of CEA and investigate CEA as a tumor marker. PubMed, EMBASE and other databases were searched for potentially eligible studies. Forty-one studies reporting the prognostic effect of pretreatment serum CEA expression in gastric cancer patients were selected. Data on 14651 eligible patients were retrieved for the meta-analysis. Based on the data extracted from the available literature, the hazard ratio (HR) and 95% confidence interval (CI) for an adverse prognosis were estimated for gastric cancer patients with elevated pretreatment serum levels of CEA (CEA+) relative to patients with normal pretreatment CEA levels (CEA-). The CEA+ patients had a significantly poorer prognosis than the CEA- patients in terms of overall survival (OS: HR 1.716, 95% CI 1.594 - 1.848, P&lt; 0.001), disease-specific survival (DSS: HR 1.940, 95% CI 1.563 - 2.408, P&lt; 0.001), and disease-free survival (DFS: HR 2.275, 95% CI 1.836 - 2.818, P&lt; 0.001). Publication bias and an influence of different cut-off values were not observed (all P&gt; 0.05). In the pooled analyses of multivariate-adjusted HRs, the results suggested that pretreatment serum CEA may be an independent prognostic factor in gastric cancer (OS: HR 1.681, 95% CI 1.425 - 1.982; DSS: HR 1.900, 95% CI 1.441 - 2.505; DFS: HR 2.579, 95% CI 1.935 - 3.436). The meta-analysis based on the available literature supported the association of elevated pretreatment serum CEA levels with a poor prognosis for gastric cancer and a nearly doubled risk of mortality in gastric cancer patients. CEA may be an independent prognostic factor for gastric cancer patients and may aid in determining appropriate treatment which may preferentially benefit the CEA+ patients.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>25879931</pmid><doi>10.1371/journal.pone.0124151</doi><oa>free_for_read</oa></addata></record>
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1932-6203
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subjects Analysis
Antigens
Cancer
Cancer patients
Carcinoembryonic antigen
Carcinoembryonic Antigen - blood
Colorectal cancer
Confidence intervals
Female
Gastric cancer
Gastroenterology
Health aspects
Health risks
Humans
Male
Medical ethics
Medical prognosis
Meta-analysis
Metastasis
Mortality
Multivariate analysis
Patients
Prognosis
Risk Factors
Serum levels
Stomach cancer
Stomach Neoplasms - blood
Stomach Neoplasms - diagnosis
Studies
Survival
Survival analysis
Tumor markers
Uncertainty analysis
title The prognostic significance of pretreatment serum CEA levels in gastric cancer: a meta-analysis including 14651 patients
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