CRP and rheumatoid arthritis: The average value of DAS28-ESR in patients with RA with HAD was 5.8 ± 0.5, and was higher than that in patients with LDA and MDA (2.73 ± 0.07, 4.4 ± 0.5, respectively); in contrast, the mean value of DAS28-CRP was 4.8 ± 0.5 in patients with HAD (P = 0.0001) (Table 3).