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CA19-9 and CA242 as tumor markers for the diagnosis of pancreatic cancer: a meta-analysis

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Abstract

Pancreatic cancer has the worst prognosis of any gastrointestinal cancer, with the mortality approaching the incidence. Early detection is crucial for improving patient prognosis. We therefore performed a meta-analysis to evaluate and compare the sensitivity and specificity of CA19-9 and CA242 in pancreatic cancer. We searched PubMed, EMBASE, and the Cochrane Library for studies that evaluated the diagnostic validity of CA19-9 and CA242 between January 1966 and March 2011. Meta-analysis methods were used to pool sensitivity and specificity and to construct a summary receiver-operating characteristic (SROC) curve. A total of 11 studies that included 2,316 patients who fulfilled all of the inclusion criteria were considered for analysis. The pooled sensitivities for CA242 and CA19-9 were 0.719 (95 % confidence interval [CI] 0.690–0.746) and 0.803 (95 % CI 0.777–0.826), respectively. The pooled specificities of CA242 and CA19-9 were 0.868 (95 % CI 0.849–0.885) and 0.802 (95 % CI 0.780–0.823), respectively. The diagnostic odds ratio (DOR) estimate was significantly higher for CA242 (16.261) than for CA19-9 (15.637). Our meta-analysis showed that CA242 and CA19-9 could play different roles in the diagnosis of pancreatic cancer. Although the sensitivity of CA242 is lower than that of CA19-9, its specificity is greater.

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Correspondence to Xing-Dang Liu.

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Ji-Cong Gui and Wei-Li Yan contributed equally to this work.

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Gui, JC., Yan, WL. & Liu, XD. CA19-9 and CA242 as tumor markers for the diagnosis of pancreatic cancer: a meta-analysis. Clin Exp Med 14, 225–233 (2014). https://doi.org/10.1007/s10238-013-0234-9

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  • DOI: https://doi.org/10.1007/s10238-013-0234-9

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