|| Richer States More Vulnerable ||
Following a recent World Bank study (Mortality in Rich and Poor Countries, June 2020), we constructed two measures of severity: one is the cumulative severity ratio, and the other is the daily severity ratio. The cumulative ratio is measured as the number of deaths from the first death to a cut-off date, divided by all-cause deaths in a period of the same length. The daily severity ratio is the number of deaths on a particular date divided by deaths on a single day in the phase. The cumulative severity ratio shows whether fatalities are a significant deviation from the past mortality, and, if so, denotes a pressure point on the health system, which may have adapted to it. The daily severity ratio on specific dates (eg, closure of a lockdown phase) allows us to capture whether the progression has intensified, weakened or remained unchanged over such phases.
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|| Richer States More Vulnerable || Following a recent World Bank study (Mortality in Rich and Poor Countries, June 2020), we constructed two measures of severity: one is the cumulative severity ratio, and the other is the daily severity ratio. The cumulative ratio is measured as the number of deaths from the first death to a cut-off date, divided by all-cause deaths in a period of the same length. The daily severity ratio is the number of deaths on a particular date divided by deaths on a single day in the phase. The cumulative severity ratio shows whether fatalities are a significant deviation from the past mortality, and, if so, denotes a pressure point on the health system, which may have adapted to it. The daily severity ratio on specific dates (eg, closure of a lockdown phase) allows us to capture whether the progression has intensified, weakened or remained unchanged over such phases.