Table 3: Associations between demographic and clinical factors and PKQ by simple (unadjusted) and multiple (forward) (adjusted) linear regression analysis at T1.

Patients’ level of knowledge (PKQ) (higher score indicates greater knowledge)
Unadjusted Stdandard beta coefficient ( value)Adjusted Stdandard beta coefficient ( value)

Sex (1 = men; 2 = women)0.20 (0.001)0.25 (0.000)
Cohabitation (0 = together; 1 = alone)nsns
Education (1–5: higher score = higher level of education)0.25 (0.000)0.27 (0.000)
Age (years)nsns
BMI (higher score = higher BMI)nsns
PASI (higher score = more severe disease)ns0.19 (0.002)
PsA (1 = no; 2 = yes)0.14 (0.023)ns
Comorbidity (1 = no; 2 = yes)nsns
Previous climate therapy (1 = no; 2 = yes)0.28 (0.000)0.29 (0.000)

BMI: body mass index, PsA: psoriasis arthritis, PASI: psoriasis area severity index, PKQ: psoriasis knowledge questionnaire, T1: before climate therapy, and ns: nonsignificant.