Table 2 Baseline characteristics of study patients (n = 223)
VariableMeanSDMedianQ1Q3
Age (years)51.4513.0250.9241.9561.66
Sex (% female)78.50
Rheumatoid factor (IU/ml)372.06527.66197.0092.00449.00
Disease duration (months)6.093.425.463.428.29
Swollen joint count (28)12.957.1612.007.0019.00
Tender joint count (28)13.377.6712.008.0020.00
ESR (0–100) (mm/h)41.5424.7537.0025.0055.00
C-reactive protein (mg/dl)2.713.501.405.003.50
MD global (0–100 mm)49.5120.7450.0031.5065.00
Patient global (0–100 mm)43.1223.6043.2919.9863.27
Pain VAS (0–100 mm) from MD office60.5627.4165.0045.0083.00
HAQ (0–3)1.210.711.250.751.63
Ritchie Articular Index (0–78)17.8110.1216.0011.0023.00
Swollen joint count (44)18.79.89171224
Joint space narrowing score4.226.082.000.506.00
Erosion score2.113.800.750.172.50
Total Sharp score*6.338.453.581.258.50
Patient global VAS (0–100 mm) from MD office61.0526.4262.5043.0084.00
DAS44/ESR-4 item4.921.244.673.985.85
DAS44/ESR-3 item4.731.184.553.835.67
DAS44/CRP-4 item4.711.284.483.865.65
DAS44/CRP-3 item4.511.214.313.655.37
DAS28/ESR 4 item6.121.206.105.286.97
DAS28/ESR-3 item5.851.155.995.086.65
DAS28/CRP-4 item5.561.195.514.796.44
DAS28/CRP-3 item5.351.145.464.626.08
SDAI39.2016.9836.8827.750.58
CDAI (0–76)36.4715.8533.624.846.60
  • CDAI, Clinical Disease Activity Index; CRP, C-reactive protein; DAS, Disease Activity Score; ESR, Westergren erythrocyte sedimentation rate; HAQ, Health Assessment Questionnaire; MD global, physician global assessment; Patient global, patient global assessment; SDAI, Simplified Disease Activity Index; VAS, visual analogue scale.

  • *The total sharp score = erosion score+joint space narrowing score.5