Role of the pretreatment neutrophil-to-lymphocyte ratio in the survival of primary parotid cancer patients
Authors Cheng G, Liu F, Niu X, Fang Q
Received 21 November 2018
Accepted for publication 4 February 2019
Published 21 March 2019 Volume 2019:11 Pages 2281—2286
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Colin Mak
Peer reviewer comments 3
Editor who approved publication: Professor Nakshatri
Guangyan Cheng,1 Fei Liu,1 Xinyu Niu,1 Qigen Fang2
1Department of Oral Medicine, Stomatology Center, The First affiliated hospital of Zhengzhou University, Zhengzhou, People’s Republic of China; 2Department of Head Neck and Thyroid, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, People’s Republic of China
Background: To analyze the value of the pretreatment neutrophil-to-lymphocyte ratio (NLR) in the survival of patients with parotid cancer.
Methods: In total, 249 patients were enrolled. Information including age, sex, pretreatment NLR, and pathologic variables such as, tumor stage, intraparotid node (IPN) metastasis, and follow-up findings was extracted and analyzed.
Results: IPN metastasis was noted in 45 (18.1%) patients, and the mean NLR was 2.48, with a range from 1.5 to 6.1. The NLR was significantly associated with tumor stage, disease stage, and disease grade. A total of 73 patients died of the disease, and the 10 -year disease-specific survival (DSS) rate was 62%. In patients with an NLR<2.48, the 10 -year DSS rate was 68%; in patients with an NLR≥2.48, the 10 -year DSS rate was 58%, and the difference was significant (P=0.006). Cox model analysis showed that the NLR was an independent prognostic factor for DSS.
Conclusion: The long-term survival of primary parotid cancer patients is relatively favorable, and the pretreatment NLR is significantly associated with prognosis.
Keywords: parotid cancer, intraparotid node metastasis, neutrophil-to-lymphocyte ratio, prognosis
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