Qi (2020)
Epidemiological and clinical features of 2019-nCoV acute respiratory disease cases in Chongqing municipality China: a retrospective descriptive multiple-center study

https://doi.org/10.1101/2020.03.01.20029397
Comorbidities
COPD (Present vs. Not present)
COVID-19 (severe/critical)
Odds ratio: 3.370 (1.410-8.030) Univariate analysis. Calculated odds ratio based on data reported in the article.

Retrospective observational study

267

Qianjiang central hospital of Chongqing, Chongqing three gorges central hospital and Chongqing public health medical center from January 19 to February 16, 2025

Epidemiological and clinical features of 2019-nCoV acute respiratory disease cases in Chongqing municipality China: a retrospective descriptive multiple-center study

0


COVID-19 (severe/critical)

0


Comorbidities

COPD

Chronic obstructive pulmonary disease

Not present

Present


Odds ratio

3.370 (1.410-8.030)

Yes

Yes

No


No