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Table 2 Demographics, medications and disease activity in AM and non-AM patients

From: MRI bone oedema scores are higher in the arthritis mutilans form of psoriatic arthritis and correlate with high radiographic scores for joint damage

Clinical features AM*(N = 11) Non AM (N = 17) p value
  Median (range) Median (range)  
Age (years) 52 (36 to 63) 50 (20 to 63) 0.56
Duration of PsA (years) 12 (5 to 35) 10 (5 to 25) 0.51
Duration of psoriasis (years) 22 (11 to 49) 20 (5 to 50) 0.24
Weight (kg) mean (range) 78 (65 to 107) 83 (68 to 111) 0.42
Female:Male 3:8 8:9 0.44
Ethnicity: European 91% 88% 0.94
Medications Number (%) Number (%)  
Methotrexate 4 (36%) 11 (65%)  
NSAIDs 7 (64%) 10 (10%)  
Prednisone 5 to 20 mg/day 2 (18%) 2 (12%)  
Sulphasalazine 2 to 3 g/day 3 (28%) 5 (29%)  
Azathioprine 150 mg/day 0 1 (6%)  
Hydroxychloroquine 400 mg/day 0 1 (6%)  
Leflunomide 20 mg/day 1 (9%) 0  
Cyclosporin 100 mg/day 0 1 (6%)  
Disease activity Median (range) Median (range)  
Tender joint count 17 (1 to 40) 11 (4 to 51) 0.98
Swollen joint count 6 (0 to 33) 4 (0 to 9) 0.20
Pain score 35 (16 to 78) 45 (6 to 82) 0.47
HAQ score (n = 27) 1.1 (0 to 3.5) 0.7 (0 to 3) 0.26
PF-SF-36 52.5 (5 to 85) 65 (10 to 90) 0.39
ESR (mm/hour) 14 (1 to 43) 13 (2 to 86) 0.61
CRP (mg/litre) (n = 25) 11.6 (3 to 59) 4.9 (< 1 to 46) 0.26
DAS28-CRP (n = 23) 3.91 (2.6 to 5.7) 4.2 (2.3 to 6.2) 0.64
DAS28-ESR (n = 28) 4.2 (1.7 to 6.1) 4.0 (1.9 to 6.9) 0.61
Psoriatic nail severity score 11 (0 to 47) 8 (0 to 22) 0.19
PASI (n = 26) 0.6 (0 to 12) 1.8 (0 to 10.3) 0.84
  1. AM = arthritis mutilans, CRP = c-reactive protein, DAS28 – CRP = Disease Activity Score (28 swollen and tender joints, CRP, General Health VAS), DAS28 – ESR = Disease Activity Score (28 swollen and tender joints, ESR, General Health VAS), ESR = Erythrocyte Sedimentation Rate, HAQ = Health Assessment Questionnaire, non-AM = non-arthritis mutilans, NSAID = nonsteroidal anti-inflammatory drugs, PASI = Psoriasis Area and Severity Index, PF-SF-36 = Physical Function component of the Short Form 36 Questionnaire, PsA = psoriatic arthritis.