Table 1.

Characteristics of the study populations.

CharacteristicPsoriasisPsoriasis and PsA
No. cases217
Male:female12:95:2
Age, mean (SD), yrs55.7 ± 13.554.7 ± 3.6
Body mass index, mean (SD)28.5 ± 4.229.8 ± 3.2
PASI, mean (SD)8.3 ± 7.75.5 ± 6.2
Nail disease, n (%)11 (52.4)4 (57.1)
Years from onset of psoriasis, mean (SD)16 ± 12.511.1 ± 8.2
Baseline GUESS, mean (SD)8 ± 3.89.2 ± 2
GUESS at 3rd year followup, mean (SD)8.6 ± 2.89.7 ± 1.6
  • PsA: psoriatic arthritis; PASI: Psoriasis Area and Severity Index; GUESS: Glasgow Ultrasound Enthesitis Scoring System.