Table 3

Comparison of demographics and clinical characteristics of patients who had newly diagnosed psoriatic arthritis (PsA) with those who had established PsA

Newly diagnosed patients with PsA (n=29)Known PsA patients (n=100)p Value
Age (years±SD)52.03±10.6249.57±12.510.43
% Male18 (62%)49 (49%)0.21
Duration of psoriasis (years±SD)29.10±15.0825.38±13.750.84
Duration of PsA (years±SD)1.05±0.6614.46±10.39<0.0001
PASI (score±SD)2.40±1.131.65±2.330.02
Nail disease, current (%)20 (69%)77 (77%)0.37
Nail disease, ever (%)22 (76%)83 (83%)0.38
Scalp Ps, current (%)15 (52%)17 (17%)<0.0001
Scalp Ps, ever (%)27 (93%)82 (82%)0.14
Active joint disease (%)26 (89.65%)36 (36%)<0.0001
Predominant type of arthritis
 Polyarthritis (≥5 joints)9 (31%)75 (75%)<0.0001
 Oligoarthritis (≤4 joints)9 (31%)17 (17%)
 Enthesitis4 (14%)0 (0%)
 Inflammatory axial disease7 (24%)8 (8%)
  • PASI, Psoriasis Area and Severity Index; Ps, psoriasis.