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Prevalence and impact of diabetes in patients with COVID-19 in China

Min Du  Yu-Xin Lin  Wen-Xin Yan  Li-Yuan Tao  Min Liu  Jue Liu  
【摘要】:BACKGROUND Corona virus disease 2019(COVID-19) is an emerging infectious disease that has spread rapidly around the world.Previous studies have indicated that COVID-19 patients with diabetes are prone to having poor clinical outcomes.AIM To systematically evaluate the prevalence of diabetes among COVID-19 patients in China and its impact on clinical outcomes,including ICU admission,progression to severe cases,or death.METHODS We searched studies published in PubMed,Web of Science,and EMBASE from December 1,2019 to March 31,2020 to identify relevant observational study that investigated the prevalence of diabetes among COVID-19 patients or its impact on clinical outcomes.We used a random-effects or fixed-effects model to estimate the pooled prevalence of diabetes and risk ratio(RR) and its 95% confidence interval(CI) of diabetes on outcomes.Funnel plots were used to evaluate the publication bias and the heterogeneity was evaluated by I~2 statistic.RESULTS Twenty-three eligible articles induding 49564 COVID-19 patients(1573 with and47991 without diabetes) were finally included.The pooled prevalence of diabetes was 10%(95% CI:7%-15%) in COVID-19 patients.In the subgroup analyses,the pooled prevalence of diabetes was higher in studies with patients aged 50 years(13%;95% CI:11%-16%) than in studies with patients aged ≤50 years(7%;95%CI:6%-8%),in severe patients(17%;95% CI:14%-20%) than in non-severe patients(6%;95% CI:5%-8%),and in dead patients(30%;95% CI:13%-46%) than in survivors(8%;95% CI:2%-15%)(P 0.05 for all).Compared with patients without diabetes,the risk of severe cases was higher(RR=2.13,95% CI:1.76-2.56,I~2=49%)in COVID-19 patients with diabetes.The risk of death was also higher in COVID-19 patients with diabetes(RR=3.16,95% CI:2.64-3.78,I~2=34%).However,diabetes was not found to be significantly associated with admission to ICU(RR=1.16,95% CI:0.15-9.11).CONCLUSION Nearly one in ten COVID-19 patients have diabetes in China.Diabetes is associated with a higher risk of severe illness and death.The present study suggested that targeted early intervention is needed in COVID-19 patients with diabetes.

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