Table 1.

Demographic clinical characteristics of patients with PsA or PsC, and HC, and prevalence of poor sleep quality.

CharacteristicFrequency (%) or Mean (SD)
PsA, n = 113PsC, n = 62HC, n = 52
Age, yrs57.4 (11.58)56.9 (14.2)42.2 (13.6)
BMI, kg/m230.2 (6.3)28.6 (6.2)N/A
PASI1.8 (4.7)2.9 (3.0)N/A
Duration of PsD, yrs17.1 (11.6)25.9 (17.0)N/A
Sex, male62 (54.9)25 (40.3)15 (28.9)
Obstructive sleep apnea3 (2.65)3 (4.8)N/A
Poor sleep quality*95 (84.1)43 (69.4)26 (50.0)
  • * Calculated Pittsburgh Sleep Quality Index scores: ≤ 5 is associated with good sleep quality and > 5 is associated with poor sleep quality. PsA: psoriatic arthritis; PsC: psoriasis without arthritis; HC: healthy control; N/A: not applicable or not available; BMI: body mass index; PsD: psoriatic disease; PASI: Psoriasis Area and Severity Index.