Table 1.

Baseline characteristics of included patients.

				P-value
Baseline characteristics	TOTAL	TRAINED	UNTRAINED	trained vs. untrained
Number	209	78	131
Female	80.4%	79.5%	80.9%
Rheumatoid factor pos.	55.5%	52.6%	57.3%
Age (years)	56.3(12.3)	54.2 (12.6)	57.6 (12.0)	0.06
Disease duration (years)	11.4 (9.6)	11.0 (9.2)	11.6 (9.9)	0.66
PGA (mm)	28.1 (21.9)	28.1 (22.4)	28.0 (21.7)	0.97
VAS pain (mm)	26.2 (21.0)	26.1 (20.9)	26.2 (21.2)	0.99
EGA (mm)	12.9 (13.5)	16.3 (15.7)	10.8 (11.5)	0.004
CRP (mg/dl)	0.92 (2.0)	1.0 (1.7)	0.89 (2.2)	0.81
ESR (mm/hr)	26.2 (22.3)	28.2 (26.1)	25.1 (20.1)	0.38
HAQ	0.78 (0.72)	0.81 (0.74)	0.77 (0.71)	0.71
SJC28 biometrican	2.4 (3.0)	3.3 (3.3)	1.9 (2.7)	0.001
TJC28 biometrican	2.7 (4.5)	2.4 (4.1)	2.9 (4.7)	0.48
SJC28 physician	2.4 (1.9)	3.1 (3.1)	1.9 (2.7)	0.004
TJC28 physician	3.0 (4.1)	2.9 (3.7)	3.0 (4.4)	0.85
SJC28 patient	3.1 (4.3)	2.7 (3.6)	3.4 (4.7)	0.28
TJC28 patient	3.4 (5.2)	3.0 (4.5)	3.7 (5.6)	0.33
CDAI	9.0 (7.4)	10.1 (7.9)	8.4 (7.0)	0.097
SDAI	10.0 (7.8)	11.1 (8.5)	9.3 (7.4)	0.094
DAS28	3.4 (1.1)	3.4 (1.2)	3.4 (1.1)	0.33

Data are shown as mean (SD) unless indicated otherwise.

CDAI: Clinical Disease Activity Index, CRP: c-reactive protein, DAS28: disease activity score 28, EGA: evaluator global assessment of disease activity, ESR: erythrocyte sedimentation rate, HAQ: health assessment questionnaire, PGA: patient global assessment of disease activity, SDAI: simplified disease activity score, SJC28: swollen joint count, TJC28: tender joint count, VAS: pain visual analogue scale of pain