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Study characteristics

Country where the study was conducted

Study type

Retrospective observational study

Data Source

Size of study popopulation

275

Study population description

mainland China outside of Hubei Province, from December 18th, 2019 to March 8, 2025

Study population characteristics

History of coronary heart disease increases the mortality rate of COVID-19 patients: a nested case-control study

Follow up type

Follow up

Results

Outcome related to coronavirus

COVID-19 (death)

Number of cases

Case definition

Associated factor category

Comorbidities

Associated factor name

COPD

Associated factor description

Chronic obstructive pulmonary disease

Risk reference category

Not present

Number of cases in the reference category

Total number of patients in the reference category

Risk comparison category

Present

Number of cases in the comparison category

Total number of patients in the comparison category

Type of measure of association

Hazard ratio

Risk value (95% confidence interval)

2.600 (1.200-5.600)

Significant preventive factor

Significant risk factor

Yes

Is the risk adjusted?

Risk adjustment description

Other information

Comment

Article Quality

QC done?

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