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Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 BMJ+Open 2020 ; 10 (10): e040129 Nephropedia Template TP
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Sex difference in coronavirus disease (COVID-19): a systematic review and meta-analysis #MMPMID33028563
Abate BB; Kassie AM; Kassaw MW; Aragie TG; Masresha SA
BMJ Open 2020[Oct]; 10 (10): e040129 PMID33028563show ga
OBJECTIVE: To assess the sex difference in the prevalence of COVID-19 confirmed cases. DESIGN: Systematic review and meta-analysis. SETTING: PubMed, Cochrane Library and Google Scholar were searched for related information. The authors developed a data extraction form on an Excel sheet and the following data from eligible studies were extracted: author, country, sample size, number of female patients and number of male patients. Using STATA V.14 for analysis, the authors pooled the overall prevalence of men and/or women using a random-effect meta-analysis model. The authors examined the heterogeneity in effect size using Q statistics and I(2) statistics. Subgroup and sensitivity analyses were performed. Publication bias was also checked. PARTICIPANTS: Studies on COVID-19 confirmed cases were included. INTERVENTION: Sex (male/female) of COVID-19 confirmed cases was considered. PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcome was prevalence of COVID-19 among men and women. RESULTS: A total of 57 studies with 221 195 participants were used in the analysis. The pooled prevalence of COVID-19 among men was found to be 55.00 (51.43-56.58, I(2)=99.5%, p<0.001). Sensitivity analysis showed the findings were not dependent on a single study. Moreover, a funnel plot showed symmetrical distribution. Egger's regression test p value was not significant, which indicates absence of publication bias in both outcomes. CONCLUSIONS: The prevalence of symptomatic COVID-19 was found to be higher in men than in women. The high prevalence of smoking and alcohol consumption contributed to the high prevalence of COVID-19 among men. Additional studies on the discrepancies in severity and mortality rate due to COVID-19 among men and women and the associated factors are recommended.
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BMJ+Open 2020 ; 10 (10): e040129
