The neutrophil percentage‐to‐albumin ratio is related to the occurrence of diabetic retinopathy

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Abstract
Background: Among patients with diabetic retinopathy (DR), no proof was available to confirm the prognostic significance of the neutrophil percentage‐to‐albumin ratio (NPAR). We hypothesized that NPAR plays a role in the incidence of DR in diabetic patients.Methods: We extracted all diabetes mellitus (DM) data from the National Health and Nutrition Examination Survey (NHANES) database between 1999 and 2018, NPAR was expressed as neutrophil percentage/albumin. Multivariable logistic regression and generalized additive model were utilized for the purpose of examining the correction between NPAR levels and DR. Subgroup analysis of the associations between NPAR and DR was carried out to investigate if the impact of the NPAR varied among different subgroups.Results: An aggregate of 5850 eligible participants were included in the present research. The relationship between NPAR levels and DR was positive linear. In the multivariate analysis, following the adjustment for confounders (gender, white blood cell, age, monocyte percent, red cell distribution width, eosinophils percent, bicarbonate, body mass index, iron, glucose, basophils percent, total bilirubin, creatinine, and chloride), higher NPAR was an independent risk factor for DR compared to lower NPAR (OR, 95% CI: 1.18, 1.00–1.39; 1.24, 1.04–1.48). For the purpose of sensitivity analysis, we found a trend of consistency (p for trend: 0.0190). The results of the subgroup analysis revealed that NPAR did not exert any statistically significant interactions with any of the other DR risk variables.Conclusions: Elevated NPAR is associated with an elevated risk of occurrence of DR in diabetic patients.

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