4.6 Article

Nonadherence to systemic immune-modifying therapy in people with psoriasis during the COVID-19 pandemic: findings from a global cross-sectional survey

Journal

BRITISH JOURNAL OF DERMATOLOGY
Volume 188, Issue 5, Pages 610-617

Publisher

OXFORD UNIV PRESS
DOI: 10.1093/bjd/ljac144

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This study investigated the nonadherence to immune-modifying therapy in individuals with psoriasis during the COVID-19 pandemic and its association with mental health. The most common reason for nonadherence was concerns about immunity. After adjusting for potential confounders, the association between anxiety and nonadherence to immune-modifying therapy became weaker and no longer significant. This study highlights the importance of clear and adequate communication with patients during a pandemic.
Background Nonadherence to immune-modifying therapy is a complex behaviour which, before the COVID-19 pandemic, was shown to be associated with mental health disorders in people with immune-mediated diseases. The COVID-19 pandemic has led to a rise in the global prevalence of anxiety and depression, and limited data exist on the association between mental health and nonadherence to immune-modifying therapy during the pandemic. Objectives To assess the extent of and reasons underlying nonadherence to systemic immune-modifying therapy during the COVID-19 pandemic in individuals with psoriasis, and the association between mental health and nonadherence. Methods Online self-report surveys (PsoProtectMe), including validated screens for anxiety and depression, were completed globally during the first year of the pandemic. We assessed the association between anxiety or depression and nonadherence to systemic immune-modifying therapy using binomial logistic regression, adjusting for potential cofounders (age, sex, ethnicity, comorbidity) and country of residence. Results Of 3980 participants from 77 countries, 1611 (40.5%) were prescribed a systemic immune-modifying therapy. Of these, 408 (25.3%) reported nonadherence during the pandemic, most commonly due to concerns about their immunity. In the unadjusted model, a positive anxiety screen was associated with nonadherence to systemic immune-modifying therapy [odds ratio (OR) 1.37, 95% confidence interval (CI) 1.07-1.76]. Specifically, anxiety was associated with nonadherence to targeted therapy (OR 1.41, 95% CI 1.01-1.96) but not standard systemic therapy (OR 1.16, 95% CI 0.81-1.67). In the adjusted model, although the directions of the effects remained, anxiety was not significantly associated with nonadherence to overall systemic (OR 1.20, 95% CI 0.92-1.56) or targeted (OR 1.33, 95% CI 0.94-1.89) immune-modifying therapy. A positive depression screen was not strongly associated with nonadherence to systemic immune-modifying therapy in the unadjusted (OR 1.22, 95% CI 0.94-1.57) or adjusted models (OR 1.14, 95% CI 0.87-1.49). Conclusions These data indicate substantial nonadherence to immune-modifying therapy in people with psoriasis during the pandemic, with attenuation of the association with mental health after adjusting for confounders. Future research in larger populations should further explore pandemic-specific drivers of treatment nonadherence. Clear communication of the reassuring findings from population-based research regarding immune-modifying therapy-associated adverse COVID-19 risks to people with psoriasis is essential, to optimize adherence and disease outcomes. One quarter of individuals with psoriasis who completed PsoProtectMe reported non-adherence to systemic immune-modifying therapy during the pandemic, primarily due to concerns around their immunity. After adjusting for confounders (age, sex, ethnicity, comorbidity) and country of residence, the association between a positive screen for anxiety and non-adherence to immune-modifying therapy in individuals with psoriasis was attenuated and no longer significant. Future research in larger populations should further explore pandemic-specific drivers of treatment non-adherence. Clear communication of the reassuring findings from population-based research regarding immune modifying therapy-associated adverse COVID-19 risks to individuals with psoriasis is essential.

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