“…Eleven article were excluded after the assessment because the outcomes outlined in seven of the articles did not meet the criteria of the present study, three articles had no information on a control group, and one article was not published in English. Thus, 13 studies [20] , [21] , [22] , [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] , [31] , [32] , which included a total of 67,131 patients with COVID-19, were included in the analysis ( Figure 1 ). Of the 13 studies, eight were retrospective cohort studies, three were case-control studies, and two were case-series studies.…”