期刊
BMJ OPEN
卷 10, 期 9, 页码 -出版社
BMJ PUBLISHING GROUP
DOI: 10.1136/bmjopen-2020-038976
关键词
epidemiology; coronary heart disease; survival analysis
资金
- National Natural Science Foundation of China [71874111]
- China Ministry of Education Key Research Institute of Humanities and Social Sciences at Universities [17JJD790008]
- Shanghai Municipal Health Bureau Foundation [201740116]
- Shanghai Jiao Tong University Scientific and Technological Innovation Funds [YG2020YQ01, YG2020YQ06]
Objective Evaluate the risk of pre-existing comorbidities on COVID-19 mortality, and provide clinical suggestions accordingly. Setting A nested case-control design using confirmed case reports released from the news or the national/provincial/municipal health commissions of China between 18 December 2019 and 8 March 2020. Participants Patients with confirmed SARS-CoV-2 infection, excluding asymptomatic patients, in mainland China outside of Hubei Province. Outcome measures Patient demographics, survival time and status, and history of comorbidities. Method A total of 94 publicly reported deaths in locations outside of Hubei Province, mainland China, were included as cases. Each case was matched with up to three controls, based on gender and age +/- 1 year old (94 cases and 181 controls). The inverse probability-weighted Cox proportional hazard model was performed, controlling for age, gender and the early period of the outbreak. Results Of the 94 cases, the median age was 72.5 years old (IQR=16), and 59.6% were men, while in the control group the median age was 67 years old (IQR=22), and 64.6% were men. Adjusting for age, gender and the early period of the outbreak, poor health conditions were associated with a higher risk of COVID-19 mortality (HR of comorbidity score, 1.31 [95% CI 1.11 to 1.54]; p=0.001). The estimated mortality risk in patients with pre-existing coronary heart disease (CHD) was three times that of those without CHD (p<0.001). The estimated 30-day survival probability for a profile patient with pre-existing CHD (65-year-old woman with no other comorbidities) was 0.53 (95% CI 0.34 to 0.82), while it was 0.85 (95% CI 0.79 to 0.91) for those without CHD. Older age was also associated with increased mortality risk: every 1-year increase in age was associated with a 4% increased risk of mortality (p<0.001). Conclusion Extra care and early medical interventions are needed for patients with pre-existing comorbidities, especially CHD.
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