Depression and Psoriatic Arthritis Study

[Fred]

This study published in The Journal of Rheumatology suggest that the chance of depression and anxiety are higher for people with psoriatic arthritis than those with only psoriasis.

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Objective:
(1) To determine the prevalence of depression and anxiety in patients with psoriatic arthritis (PsA) and to identify associated demographic and disease-related factors.
(2) To determine whether there is a difference in the prevalence of depression and anxiety between patients with PsA and those with psoriasis without PsA (PsC).

Methods:
Consecutive patients attending PsA and dermatology clinics were assessed for depression and anxiety using the Hospital Anxiety and Depression Scale. Patients underwent a clinical assessment according to a standard protocol and completed questionnaires assessing their health and quality of life. T tests, ANOVA, and univariate and multivariate models were used to compare depression and anxiety prevalence between patient cohorts and to determine factors associated with depression and anxiety.

Results:
We assessed 306 patients with PsA and 135 with PsC. There were significantly more men in the PsA group (61.4% vs 48% with PsC) and they were more likely to be unemployed. The prevalence of both anxiety and depression was higher in patients with PsA (36.6% and 22.2%, respectively) compared to those with PsC (24.4% and 9.6%; p = 0.012, 0.002). Depression and/or anxiety were associated with unemployment, female sex, and higher actively inflamed joint count as well as disability, pain, and fatigue. In the multivariate reduced model, employment was protective for depression (OR 0.36) and a 1-unit increase on the fatigue severity scale was associated with an increased risk of depression (OR 1.5).

Conclusion:
The rate of depression and anxiety is significantly higher in patients with PsA than in those with PsC. Depression and anxiety are associated with disease-related factors.

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