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Table 1 Clinical and demographic data of PsA patients (n=30) at time of arthroscopy*

From: Cytokine expression in synovial tissue of psoriatic arthritis and its relationship with lymphoid neogenesis, disease activity and erosive disease: a longitudinal study

Age (years) at time of arthroscopy 47 (37;60)
Disease duration before arthroscopy (months) 110 (30;170)
Time of follow-up after arthroscopy (months) 35 (22;45)
Tender Joint Count 2 (1;2)
Swollen Joint Count 2 (1;3)
CRP (mg/dL) 1.77 (0.30; 5.51)
ESR (mm/1st hour) 18.5 (8;52)
ACPA (Ul/mIL) (n, positive > 25) 0  
Rheumatoid Factor (Ul/ml) (n, positive>20) 2  
DAS28 3v 3.63 (2.73; 4.59)
Joint Pattern   
   Polyarthritis; n (%) 11 36.7
   Oligoarthritis, n (%) 19 63.3
Type of Psoriasis   
Type I (<40 years), n (%) 22 70.3
Type II (>40 years), n (%) 8 29.7
  1. *Data are expressed as median and IQR. CRP: C-reative protein; ESR: erythrocyte sedimentation rate; ACPA: anti-citrullinated peptide/protein antibodies; DAS: disease activity score