Prognostic significance of systemic immune inflammation index for ovarian cancer: An updated systematic review and meta-analysis

Abstract Objective Several inflammatory indices have been used to assess the prognosis of ovarian cancer, with variable results. This review assessed whether the systemic immune inflammation index (SII) can predict outcomes in patients with ovarian cancer. Methods Embase, PubMed, CENTRAL, Web of Sci...

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Main Authors: Boliang Chu, Yingying Chen, Jiewei Pan
Format: Article
Language:English
Published: BMC 2025-02-01
Series:Journal of Ovarian Research
Subjects:
Online Access:https://doi.org/10.1186/s13048-025-01626-1
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author Boliang Chu
Yingying Chen
Jiewei Pan
author_facet Boliang Chu
Yingying Chen
Jiewei Pan
author_sort Boliang Chu
collection DOAJ
description Abstract Objective Several inflammatory indices have been used to assess the prognosis of ovarian cancer, with variable results. This review assessed whether the systemic immune inflammation index (SII) can predict outcomes in patients with ovarian cancer. Methods Embase, PubMed, CENTRAL, Web of Science, and Scopus databases were searched by the two reviewers from inception to 15th October 2024 for studies assessing the relationship between SII and overall survival (OS) or disease-free survival (DFS). Results Ten studies with eleven cohorts were included. Pooled analysis showed that higher SII was a significant predictor of poor OS (HR: 2.35 95% CI: 1.56, 3.55 I2 = 88%) and worse DFS (HR: 2.51 95% CI: 1.71, 3.67 I2 = 80%) after ovarian cancer. Sensitivity analysis failed to change the significance of the results. No publication bias was noted. Most results remained significant on subgroup analyses based on location, sample size, FIGO stage, treatment, adjusted outcomes, cut-off of SII, method of determining cut-off, and quality score. Conclusions SII can be a potential predictor of OS and DFS after ovarian cancer. Further studies are required to improve the evidence.
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spelling doaj-art-c4d7999337bc4d58baeb2da0142f530c2025-08-20T02:16:39ZengBMCJournal of Ovarian Research1757-22152025-02-0118111110.1186/s13048-025-01626-1Prognostic significance of systemic immune inflammation index for ovarian cancer: An updated systematic review and meta-analysisBoliang Chu0Yingying Chen1Jiewei Pan2Department of Gynecology, Huzhou Maternity & Child Health Care HospitalDepartment of Gynecology, Huzhou Maternity & Child Health Care HospitalDepartment of Gynecology, Huzhou Maternity & Child Health Care HospitalAbstract Objective Several inflammatory indices have been used to assess the prognosis of ovarian cancer, with variable results. This review assessed whether the systemic immune inflammation index (SII) can predict outcomes in patients with ovarian cancer. Methods Embase, PubMed, CENTRAL, Web of Science, and Scopus databases were searched by the two reviewers from inception to 15th October 2024 for studies assessing the relationship between SII and overall survival (OS) or disease-free survival (DFS). Results Ten studies with eleven cohorts were included. Pooled analysis showed that higher SII was a significant predictor of poor OS (HR: 2.35 95% CI: 1.56, 3.55 I2 = 88%) and worse DFS (HR: 2.51 95% CI: 1.71, 3.67 I2 = 80%) after ovarian cancer. Sensitivity analysis failed to change the significance of the results. No publication bias was noted. Most results remained significant on subgroup analyses based on location, sample size, FIGO stage, treatment, adjusted outcomes, cut-off of SII, method of determining cut-off, and quality score. Conclusions SII can be a potential predictor of OS and DFS after ovarian cancer. Further studies are required to improve the evidence.https://doi.org/10.1186/s13048-025-01626-1InflammationMarkerRisk factorMalignancyOvarySurvival
spellingShingle Boliang Chu
Yingying Chen
Jiewei Pan
Prognostic significance of systemic immune inflammation index for ovarian cancer: An updated systematic review and meta-analysis
Journal of Ovarian Research
Inflammation
Marker
Risk factor
Malignancy
Ovary
Survival
title Prognostic significance of systemic immune inflammation index for ovarian cancer: An updated systematic review and meta-analysis
title_full Prognostic significance of systemic immune inflammation index for ovarian cancer: An updated systematic review and meta-analysis
title_fullStr Prognostic significance of systemic immune inflammation index for ovarian cancer: An updated systematic review and meta-analysis
title_full_unstemmed Prognostic significance of systemic immune inflammation index for ovarian cancer: An updated systematic review and meta-analysis
title_short Prognostic significance of systemic immune inflammation index for ovarian cancer: An updated systematic review and meta-analysis
title_sort prognostic significance of systemic immune inflammation index for ovarian cancer an updated systematic review and meta analysis
topic Inflammation
Marker
Risk factor
Malignancy
Ovary
Survival
url https://doi.org/10.1186/s13048-025-01626-1
work_keys_str_mv AT boliangchu prognosticsignificanceofsystemicimmuneinflammationindexforovariancanceranupdatedsystematicreviewandmetaanalysis
AT yingyingchen prognosticsignificanceofsystemicimmuneinflammationindexforovariancanceranupdatedsystematicreviewandmetaanalysis
AT jieweipan prognosticsignificanceofsystemicimmuneinflammationindexforovariancanceranupdatedsystematicreviewandmetaanalysis