Direct and Indirect Impact of COVID-19 for Patients with Immune-Mediated Inflammatory Diseases: A Retrospective Cohort Study.

Patients with IMIDs seem to have a higher risk of SARS-CoV2 infection. However, other than for patients with prevalent biologic drug treatment, no significant differences in terms of hospitalization and mortality were reported compared to the general populations; further investigation is warranted on account of unmeasured confounding. In addition, during the lockdown period, the COVID-19 emergency highlighted a lower use of biologic drugs; this phenomenon requires strict pharmacological monitoring as it could be a proxy of forthcoming long-term clinical progression.