As for disease characteristics, significantly higher values were recorded for RA patients with impaired nutritional status in disease duration (p = 0.042) and inflammatory disease activity according to the DAS28-ESR (p = 0.003), SDAI (p = 0.010), CDAI (p = 0.013), and CRP ≥ 5 g/L (p = 0.033). The gene discussed is CRP; the disease is rheumatoid arthritis.