Abstract
Background
The ratio of C-reactive protein to albumin (CRP/Alb) is a biochemical marker of systemic inflammatory response and has been associated with poor survival in cancer. This study retrospectively investigated the relationship between the CRP/Alb ratio and prognosis in gastric cancer patients.
Methods
This study enrolled 453 patients with a histopathological diagnosis of gastric adenocarcinoma who underwent curative surgery.
Results
A statistically significant weak correlation was observed between CRP/Alb ratio and neutrophil/lymphocyte ratio (NLR) (r = 0.19; P < 0.0001). There were statistically significant correlations between high CRP/Alb ratio and age (P = 0.0004), tumor size (P = 0.02), depth of invasion (P = 0.012), and lymph node metastasis (P = 0.022). A high NLR was significantly correlated with age (P = 0.0027), tumor size (P = 0.0006), depth of invasion (P < 0.0001), lymphatic involvement (P = 0.0031), venous involvement (P = 0.0022), and stage of disease (P = 0.0024). Based on results by receiver operating characteristic analysis, patients were divided as follows: CRP/Alb ratio ≥ 0.0232 (CARHigh), CRP/Alb ratio < 0.0232 (CARLow), NLR ≥ 2.43 (NLRHigh), and NLR < 2.43 (NLRLow). Five-year survival rates of patients with both CARHigh and NLRHigh, either CARHigh or NLRHigh, and both CARLow and NLRLow were 59.6, 75.8, and 87.5%, respectively, with statistically significant differences (P < 0.0001). Multivariate analysis revealed that the combination of CRP/Alb ratio and NLR was an independent prognostic indicator.
Conclusions
The combination of CRP/Alb ratio and NLR may be useful in predicting prognosis in gastric cancer patients.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
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Saito, H., Kono, Y., Murakami, Y. et al. Prognostic Significance of the Preoperative Ratio of C-Reactive Protein to Albumin and Neutrophil–Lymphocyte Ratio in Gastric Cancer Patients. World J Surg 42, 1819–1825 (2018). https://doi.org/10.1007/s00268-017-4400-1
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DOI: https://doi.org/10.1007/s00268-017-4400-1