Table 1.
Clinical characteristics of the patients included in the study
| Early RA (n = 189) | |
|---|---|
| Age, years (mean) | 36.1 (9.15) |
| Sex (F) | 151/185a (81.6%) |
| Disease duration, days, mean (s.d.) | 49 (79) |
| ACPA+ | 129/188 (68.6%)b |
| RF+ | 122/188 (64.9%)b |
| ACPA–/RF– | 47/188 (25%)b |
| ANA+ | 63/162 (38.9%)c |
| CRP, mg/dl [mean (s.d.)] | 1.67 (2.99) |
| Erosive disease | 46/174 (26.4%)d |
| Smokers (ever) | 41/164 (25%)e |
| DAS28 (mean) | 4.40 (1.33) |
| SJC (mean [s.d.]) | 6.4 (5.7) |
| TJC (mean [s.d.]) | 10.1 (8.2) |
| SDAI (mean [s.d.]) | 23.7 (13.9) |
| CDAI (mean [s.d.]) | 22.1 (13.4) |
| HAQ (mean [s.d.]) | 1.11 (0.73) |
| CS therapy | 35/185 (18.9%)a |
| csDMARDS | 47/186 (25.3%)f |
| bDMARDS | N/A |
a
Four missing values; bone missing value; c27 missing values; d15 missing values; e25 missing values; fthree missing values. DAS28: DAS calculated on 28 joints; SJC: swollen joint count; TJC: tender joint count; SDAI: Simplified Disease Activity Index; CDAI: Clinical Disease Activity Index; csDMARDs: conventional synthetic DMARDs; bDMARDs: biologic DMARDs; N/A: not applicable.