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Authors Ma M, Yu N, Wu B
Received 11 January 2019
Accepted for publication 14 March 2019
Published 2 May 2019 Volume 2019:11 Pages 3973—3979
DOI https://doi.org/10.2147/CMAR.S201269
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Cristina Weinberg
Peer reviewer comments 2
Editor who approved publication: Dr Chien-Feng Li
Background: Malignant
pleural mesothelioma (MPM) represents a fatal disease with high aggressiveness,
and limited biomarkers have yet been identified for MPM. The present study aims
to explore potential serum prognostic factors of MPM.
Materials and methods: A retrospective
analysis of 97 pathologically diagnosed MPM was performed. The optimal cutoff
value of pretreatment systemic immune–inflammation index (SII) was determined
by receiver operating characteristic curve. Kaplan–Meier curves and Cox
regression analysis were performed to assess the potential prognostic roles of
parameters.
Results: A total of
59.8% (n=58) patients are male, with a median age of 56.0 years (range 18–77).
The optimal cutoff value of SII was 988.6×109/L. High and
low SII were found in 44 (45.4%) and 53 (54.6%) patients, respectively. Median
survival time for total 97 cases was 18.5 months. The median overall survival
for patients with low and high SII was 47.0 and 13.0 months, respectively. The
1-, 2- and 3-year survival rates for patients with low SII were 85.8%, 57.8%
and 52.0% compared to that of 53.9%, 23.6% and 13.8% in patients with high SII.
On univariate analysis, Eastern Cooperative Oncology Group performance
status (ECOG PS)<2 points, low SII and
adjuvant treatment (P <0.05) were found to be closely correlated with a
better prognosis of MPM. Only ECOG PS (P =0.036) and SII (P =0.009) held statistical significance on multivariate
analysis.
Conclusion: Pretreatment
SII is easy to access to, and it represents an efficiency and noninvasive
biomarker of MPM. High SII represents an unfavorable independent prognostic
factor of MPM, and this needs to be validated in further studies.
Keywords: malignant
pleural mesothelioma, systemic immune-inflammation index, prognosis