However, a comparison between COVID-19 patients with and without T2D revealed notable disparities in hospital stay duration (13 days vs. 9.0 days), mortality rates (13% vs. 0%), inflammatory levels (C-reactive protein: 46 ng/ml vs. 8 ng/ml), and HbA1c (8.05 vs 5.70 %). This evidence concerns the gene CRP and type 2 diabetes mellitus.