Across rheumatic diseases

Outcomes with and without outpatient SARS-CoV-2 treatment for patients with COVID-19 and systemic autoimmune rheumatic diseases: a retrospective cohort study

Lancet RheumatolPublished Retrospective cohort study

Main finding · Hospitalisation or deathResult — go to the resultAdjusted odds ratio 0.12 95% CI 0.05–0.25

Authors' conclusion

Outpatient treatment was associated with lower odds of severe COVID-19 outcomes compared with no outpatient treatment.

Study context

Population
Patients aged 18 years or older with a pre-existing systemic autoimmune rheumatic disease and COVID-19 onset between Jan 23 and May 30, 2022, Mass General Brigham, Boston, MA, USA347 [49%] with RA
Participants
704 patients
Exposure
Outpatient SARS-CoV-2 treatment vs no outpatient treatment
  • Outpatient treatmentn = 426
  • No outpatient treatmentn = 278reference
Outcome
Severe COVID-19: hospitalisation or death within 30 days after the index date
Follow-up
30 days
Methodological detailsmultivariable logistic regression
  • Multivariable logistic regression

Main finding

Hospitalisation or death

Adjusted odds ratio

0.12

95% CI 0.05–0.25

Events by group

Outpatient treatmentvs No outpatient treatment
aOR 0.12 (95% CI 0.05–0.25)

As reported in the abstract

Observational data: associations, not effects.

Further findings

OutcomeValues
Documented COVID-19 rebound after oral outpatient treatmentOral outpatient treatment 7.9%
  • Documented COVID-19 rebound after oral outpatient treatment: 318 patients received oral outpatient treatment

Temporal trend in outpatient SARS-CoV-2 treatment

Outpatient treatments increased in frequency over calendar time
P < 0.0001

Original publication

Outcomes with and without outpatient SARS-CoV-2 treatment for patients with COVID-19 and systemic autoimmune rheumatic diseases: a retrospective cohort study. Lancet Rheumatol. Published 23 January 2023. doi:10.1016/s2665-9913(23)00006-1

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