%0 Journal Article %A Meside Gunduzoz %A Özlem Kar Kurt %A Turkan Nadir Ozis %A Ceylan Bal %A Murat Buyuksekerci %A Servet Iritas %A Engin Tutkun %A Omer Hinc Yilmaz %T Elevated neutrophil lymphocyte ratio and T4 levels can be predisposing factors for silicosis %D 2016 %R 10.1183/13993003.congress-2016.PA4282 %J European Respiratory Journal %P PA4282 %V 48 %N suppl 60 %X Introduction: Sillicosis is an occupational lung disease resulting from the inhalation of silica.It remains unclear about predisposing factors for silicosis.The aim of study was to investigate laboratory parameters and to determine association between laboratory parameters and silicosis.Methods: Data was collected from 2010 to 2015. Demographical data such as age, sex, cigarette smoking status, lifetime work history, respiratory symptoms,pulmonary function testing results,laboratory data, chest radiograph,high resolution computed tomography obtained at time of hospital admission.Results: 330 confirmed silicosis and 229 controls from the same work places were selected. The demographics are recorded in table 1. The mean age was 34.7 (23.6-52.3) in controls and 39 (24.4-69.9) in silicosis group.Neutrophil lymphocyte ratio (NLR), ferritin, T4 were higher in silicosis group than controls and MPV, thyroid-stimulating hormone (TSH) levels were lower in silicosis group than controls.Statistical significance was also seen in mutivariate analysis for NLR and T4.View this table:1Conclusions: To the best of our knowledge, this is the first clinical study that demonstrated high levels of NLR in silicosis. %U