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The Relationship of Neutrophil-to-Lymphocyte Ratio or Platelet-to-Lymphocyte Ratio and Pancreatic Cancer in Patients with Type 2 Diabetes by Shanzi Qin, Yu Lu, Siyuan Chen, Zuojian Hu, Huaping Chen, Jianing Zhong, Shan Li, Zhijian Chen

Background: The objective of the current study is to determine the importance of neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in combination with cancer antigen 199 (CA199) in the diagnosis of pancreatic cancer (PC) in patients with type 2 diabetes.
Methods: The study population comprised 45 PC patients with type 2 diabetes, 50 patients with type 2 diabetes alone, and 60 control subjects. All data was mined from the electronic records of the First Affiliated Hospital of Guangxi Medical University in Nanning, Guangxi, China.
Results: We found that the NLRs and PLR of PC patients with type 2 diabetes were higher compared to patients with type 2 diabetes alone and healthy subjects. A receiver operating characteristic (ROC) curve analysis for the diagnosis of PC in type 2 diabetic patients revealed that the combination of NLR and CA199 had higher specificity than either NLR or CA199 alone, while the combination of PLR and CA199 had higher sensitivity than either PLR or CA199 alone. The area under the ROC curve (AUROC) for PLR combined with CA199 was significantly larger than CA199 alone, and the AUROC for NLR combined with CA199 was also larger than CA199 alone, al-though this difference was not significant.
Conclusions: Combining PLR and CA199 values could allow earlier diagnosis of PC in type 2 diabetic patients.

DOI: 10.7754/Clin.Lab.2019.181226