Syracuse University

To adjust for the confounding variables of this observational study, the researchers noted the following for each patient:

- Age

- Sex

- Patient-reported race and ethnic group

- Current insurance carrier

- First recorded vital signs on presentation

- Ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen (Pao2:Fio2) at admission

- First recorded BMI (the patient’s weight in kg divided by the square of the height in meters), according to CDC guidelines for adults

- First recorded inpatient laboratory tests

- Past and current diagnoses (diabetes, underlying kidney disease, chronic lung disease, hypertension) 

- Patient-reported smoking status

- Medication administration at baseline


Variables Assessed in Observational Study of Hydroxychloroquine in Hospitalized Patients with COVID-19

Geleris, J., Sun, Y., Platt, J., Zucker, J., Baldwin, M., Hripcsak, G., Labella, A., Manson, D., Kubin, C., Barr, R., Sobieszczyk, M., & Schluger, N. ((2020). Observational Study of Hydroxychloroquine in Hospitalized Patients with Covid-19. The New England Journal of Medicine. DOI: 10.1056/NEJMoa2012410 
https://www.nejm.org/doi/full/10.1056/nejmoa2012410

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