Ann Rheum Dis . Risk factors for hospital admissions related to COVID-19 in patients with autoimmune inflammatory rheumatic diseases

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Ann Rheum Dis


. 2020 Aug 7;annrheumdis-2020-217984.
doi: 10.1136/annrheumdis-2020-217984. Online ahead of print.
Risk factors for hospital admissions related to COVID-19 in patients with autoimmune inflammatory rheumatic diseases


Dalifer D Freites Nu?ez ¹ , Leticia Leon ^{2 3} , Arkaitz Mucientes ¹ , Luis Rodriguez-Rodriguez ¹ , Judit Font Urgelles ⁴ , Alfredo Madrid Garc?a ¹ , Jose I Colomer ¹ , Juan A Jover ^{4 5} , Benjam?n Fernandez-Gutierrez ⁴ , Lydia Abasolo ¹



Affiliations

• PMID: 32769150
• DOI: 10.1136/annrheumdis-2020-217984

Abstract

Objectives: To describe patients with autoimmune inflammatory rheumatic diseases (AIRD) who had COVID-19 disease; to compare patients who required hospital admission with those who did not and assess risk factors for hospital admission related to COVID-19.
Methods: An observational longitudinal study was conducted during the pandemic peak of severe acute respiratory syndrome coronavirus 2 (1 March 2020 to 24 April). All patients attended at the rheumatology outpatient clinic of a tertiary hospital in Madrid, Spain with a medical diagnosis of AIRD and with symptomatic COVID-19 were included. The main outcome was hospital admission related to COVID-19. The covariates were sociodemographic, clinical and treatments. We ran a multivariable logistic regression model to assess risk factors for the hospital admission.
Results: The study population included 123 patients with AIRD and COVID-19. Of these, 54 patients required hospital admission related to COVID-19. The mean age on admission was 69.7 (15.7) years, and the median time from onset of symptoms to hospital admission was 5 (3-10) days. The median length of stay was 9 (6-14) days. A total of 12 patients died (22%) during admission. Compared with outpatients, the factors independently associated with hospital admission were older age (OR: 1.08; p=0.00) and autoimmune systemic condition (vs chronic inflammatory arthritis) (OR: 3.55; p=0.01). No statistically significant findings for exposure to disease-modifying antirheumatic drugs were found in the final model.
Conclusion: Our results suggest that age and having a systemic autoimmune condition increased the risk of hospital admission, whereas disease-modifying antirheumatic drugs were not associated with hospital admission.

Keywords: antirheumatic agents; communicable diseases; epidemiology; health care; imported; outcome assessment.