Why does the new disease activity score (EgyDAS) of Rheumatoid Arthritis not function?

The analysis of almost a century-long evolution of ideas about the criteria for the activity of Rheumatoid Arthritis showed that the developed complex indices for determination there of are far from perfect, in particular the Disease Activity Score 28 (DAS28), widely used in clinical practice [1]. Therefore, the recently developed new Disease Activity Score (EgyDAS) of Rheumatoid Arthritis [2] has attracted interest because it includes four laboratory markers of Rheumatoid Arthritis (RA) activity, as opposed to DAS28, which assesses only one laboratory marker. It is the authors’ opinion that EgyDAS is not only more accurate and easy to apply, but also “has both diagnostic/prognostic values in patient with RA”. Because “a subject has a low Egyscore <−0.79, he/she can be considered to not have RA disease “.