The Role of Immature Granulocytes and Inflammatory Hemogram Indices in the Inflammation
Said İncir
Abstract
Objectives: In this retrospective study, we aimed to assess the role of immature granulocyte percentage (IG%), inflammatory complete blood count (CBC) parameters and indices in investigating the severity of inflammation, to evaluate their correlation, and to determine their predictive ability in classifying inflammation. Methods: We obtained hematological and biochemical data of the 161 outpatients for this study. Patients were assigned to three groups according to their C-reactive protein (CRP) levels. Group I had a CRp-value of <3 mg/L (non-inflammatory group) (n=58), Group II had a CRP level between 3 to 9mg/L (low-grade inflammatory group) (n=59), and Group III had a CRP level of >9mg/L (clinically significant inflammatory group)(n=44). The between-group differences were evaluated concerning sex, age, CRP, procalcitonin, IG%, CBC parameters and indices, including Platelet-to-Lymphocyte Ratio (PLR), Neutrophil-to-Lymphocyte Ratio (NLR) and Systemic Immune-Inflammatory Index (SII). Results: In Group II, the levels of CRP (p<0.0001), platelet count (p<0.05), PLR (p<0.05), NLR (p<0.05) and SII (p<0.01) were significantly higher than those in the Group I. In Group III, CRP (p<0.0001), IG% (p<0.0001), procalcitonin (p<0.01), platelet count (p<0.05), PLR (p<0.01), NLR (p<0.05) and SII (p<0.01) values showed a significant between-group difference when compared to Group I. A significant difference between Group II and Group III was detected for, CRP (p<0.0001) and IG% (p<0.05). There were significant positive correlations among IG% and CRP (p<0.001), platelet count (p<005), PLR (p<0.05) and SII (<0.05). The sensitivity and specificity values of the IG% using a cut-off value of >0.2 were 75.3% and 52.5%, respectively.