Psychologic Morbidity Among Psoriatic Arthritis Patients in Remission or With Low Disease Activity: A Comparison Between Biologic and Conventional Synthetic Disease-Modifying Antirheumatic Drugs
2019
OBJECTIVE: The aim of this study was to compare the effect of biologic agents and conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) on the psychologic status of patients with psoriatic arthritis (PsA) in remission or with low disease activity. METHODS: This is a case-control study of PsA patients in remission or with low disease activity treated at a single-center combined rheumatologic-dermatologic clinic between 2015 and 2017. Patients were assigned to 2 comparison groups according to their treatment (1) biologic drugs and (2) csDMARDs therapy. Psoriatic arthritis disease activity was evaluated by disease activity score-28. Anxiety, somatization, and depression were evaluated by patient health questionnaires (PHQ): generalized anxiety disorder-7, PHQ-15, and PHQ-9, respectively. Disability was assessed by the health assessment questionnaire disability index (HAQ-DI). RESULTS: Thirty PsA patients with biologic treatment (BT) and 14 PsA patients with csDMARDs were enrolled. No significant differences in disease duration and treatment duration between the 2 groups were found. Disease activity score-28 was significantly better in the BT group compared with the csDMARDs group (1.8 ± 0.4 vs 2.1 ± 0.4, respectively, p = 0.028). A nonsignificant tendency toward higher scores in psychologic questionnaires was seen among the non-BT group. Moderate to high correlations between all mental questionnaires and HAQ-DI were found in both groups (0.567 ≤ r ≤ 0.850, p < 0.05). Patients with mental disturbance (generalized anxiety disorder-7/PHQ-15/PHQ-9 ≥ 5) showed significant poorer performance in their HAQ-DI in comparison with patient without physiological comorbidities in both groups. CONCLUSIONS: Tight disease control in PsA patients, achieved with BT, may offer an improvement in psychological outcomes in addition to relieving clinical symptoms.
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