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Systemic immune-inflammation index (SII) and neutrophil to lymphocyte ratio (NLR) are useful markers for assessing effects of anti-inflammatory diet in patients before coronary artery bypass grafting

Szymanska P, Rozalski M, Wilczynski M, Golanski J

Roczniki Panstwowego Zakladu Higieny, 2021

101 participants

Abstract

BACKGROUND: One of the risk factors responsible for coronary artery disease (CAD) is an inadequate diet that is frequently deficient in anti-inflammatory components, such as polyphenols and omega-3 fatty acids. The neutrophil to lymphocyte ratio (NLR) and the systemic immune-inflammation index (SII) are inflammatory markers that may reflect a diet's antiinflammatory potential.

OBJECTIVE: The aim of this study was to evaluate the effects that CAD patients' nutrition patterns have on NLR and SII.

MATERIAL AND METHODS: A retrospective study assessed the dietary habits and inflammatory marker levels in patients with advanced CAD before they underwent coronary artery bypass grafting (CABG) (n=101). Patients were divided into subgroups based on their NLR and SII levels.

RESULTS: Subgroups with lower NLR and SII levels had consumed significantly more eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (p=0.02). The group with a lower ratio of omega-6 to omega-3 fatty acids (<4:1) also had lower NLR and SII levels (p=0.007 and p=0.01, respectively). Statistically significant negative correlations were found between EPA and DHA, as well as omega-3 intake, and both NLR and SII values. No statistically significant differences were found between the subgroups with lower and higher NLR and SII values for polyphenol intakes.

CONCLUSIONS: Inflammatory markers such as NLR and SII may reflect an anti-inflammatory diet consumed by cardiac patients. A simultaneous assessment of dietary…

How strong is the evidence?

Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 101 participants or records.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

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