Work

Inflammatory status and clinical phenotypes of PCOS: the role of NLR, SII, SIRI, and AISI

Year: 2025
Type: article
Study design: Observational Study
Abstract: BACKGROUND: Polycystic ovary syndrome (PCOS) is a common endocrine-metabolic disorder in women of reproductive age, often associated with low-grade chronic inflammation. This study aimed to investigate the relationship between composite inflammatory markers-Neutrophil-to-Lymphocyte Ratio (NLR), Systemic Immune Inflammation Index (SII), Systemic Inflammation Response Index (SIRI), and Aggregate Index of Systemic Inflammation (AISI)-and clinical phenotypes of PCOS, including oligo-/amenorrhea, hyperandrogenism, and polycystic ovarian morphology (PCOM). METHODS : In this retrospective cross-sectional study, women with PCOS were categorized into subgroups based on clinical phenotypes. Composite inflammatory markers were calculated from complete blood count parameters, and their association with clinical, hormonal, and ultrasonographic findings was analyzed. ROC analysis assessed the discriminatory value of each marker. RESULTS: Inflammatory markers were significantly higher in the oligo-/amenorrhea and PCOM groups. In oligo-/amenorrhea, NLR (2.42 vs. 1.96, p = 0.028), AISI (282.16 vs. 188.73, p = 0.005), SII (664.59 vs. 519.86, p = 0.008), and SIRI (0.97 vs. 0.70, p = 0.005) were elevated. In PCOM, NLR (2.85 vs. 2.25, p = 0.025), AISI (323.15 vs. 262.78, p = 0.049), SII (738.52 vs. 641.27, p = 0.030), and SIRI (1.10 vs. 0.90, p = 0.046) were also higher. AISI showed the best discrimination for oligo-/amenorrhea (AUC = 0.652), while NLR was most predictive for PCOM (AUC = 0.617). CONCLUSIONS: Composite inflammatory markers are elevated in specific PCOS phenotypes, especially oligo-/amenorrhea and PCOM, and may reflect low-grade inflammation. These markers may help identify patients at higher cardiometabolic risk and guide preventive strategies.
Language: English
Field: Medicine
Open Access status: gold
Estimated APC paid: $2,890
OpenAlex ID: W4414630004
FWCI: 6.846
Cites: 37
Cited by: 10
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