MATERIALS AND METHODS
2.1 Data collection
The number of total confirmed cases, total confirmed deaths, and the
overall recovered persons form COVID-19 until April 25, 2020 for the
Middle East and top ten most affected countries were obtained from the
Worldometer, which is a reference website that provides real-time
statistics on different topics
(https://www.worldometers.info/coronavirus/). All these data were
further used to extract some of the related epidemiological terms as
follows.
2.2 Calculation of the central mortality-related
epidemiological
terms
Based on the data obtained from the Worldometer, the three central
mortality-related epidemiological terms (i.e., CFR, DR, CDR, as well as
the recovery rate (RR).were calculated as follows:
(Eq. 1)\(CFR=\frac{\text{Number\ of\ deaths\ in\ a\ given\ time\ period}}{\text{Number\ of\ total\ confirmed\ cases\ in\ the\ same\ time\ period}}\times 100\)
(Eq. 2)\(DR=\frac{\text{Number\ of\ total\ confirmed\ cases\ in\ a\ particular\ population\ }}{\text{Total\ size\ of\ the\ population}}\times 100\)
(Eq. 3)\(CDR=\frac{\text{Number\ of\ deaths\ }\text{in\ a\ particular\ population}}{\text{Total\ size\ of\ the\ population}}\times 100\)
(Eq. 4)\(RR=\frac{\text{Number\ of\ recovered\ persons}}{\text{Number\ of\ total\ confirmed\ cases}}\times 100\)
Microsoft Excel 2016 was applied to obtain the relevant diagrams.