Xie (2020)
Association Between Hypoxemia and Mortality in Patients With COVID-19
https://doi.org/10.1016/j.mayocp.2020.04.006
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7151468/pdf/main.pdf
Vital Signs
Oxygen saturation (Abnormal vs. Normal)
COVID-19 (death)
Hazard ratio: 47.410 (6.290-357.480) Adjusted model

China

Retrospective cohort study

Medical records

140

Patients with moderate-to-critical COVID-19 associated pneumonia hospitalized and treated by the Beijing Medical Team in Union Hospital, Wuhan, from January 28th, 2020 to February 28th, 2020, with follow-up through March, 13th 2020.

Of 140 patients with COVID-19 associated pneumonia, 51.4% were men, with a median age of 60 years. Among 71 patients of 60 years or older, 33 (46.5%) died, while 9 (69.2%) patients died in the group of ?80 years.

Median

14 Day


COVID-19 (death)

36

Died in the hospital due to COVID-19


Vital Signs

Oxygen saturation

SpO2, also known as oxygen saturation. SpO2 ?90% (?90% vs >90%)

Normal

Abnormal


Hazard ratio

47.410 (6.290-357.480)

No

Yes

Yes

Age, Gender, Hypertension, Any comorbidity, SpO2 (oxygen saturation), Dyspnea, WBC count, Neutrophil count, Lymphocyte count and Platelet count, C-reactive protein, D-dimer


none

Good

Yes