Saturday, March 28, 2020

How Wuhan/Hubei deaths from coronavirus might have been 27,000 or 33,000 not 3,177

From the story here:

Urns are reportedly being distributed at a rate of 500 a day at the mortuary until the Tomb Sweeping Day holiday, which falls on April 4 this year.

Wuhan has seven other mortuaries. If they are all sticking to the same schedule, this adds up to more than 40,000 urns being distributed in the city over the next 10 days.

Already on Jan 26 there was evidence, quickly removed, that China deaths from coronavirus had reached 81% of the official figure as of Mar 28. Remember that the closing of Hubei Province didn't occur until Jan 23, so on Jan 26 there was still chaos in China as authorities scrambled to secure the actual as well as the information environments.

Based on widely discussed figures, if one assumes Wuhan's 11 million population normally experiences a death rate of 0.7%, then 77,000 residents die annually from all causes under normal conditions. This yields 211 deaths per day on average and 6,417 deaths per month, or 12,833 over the two-month epidemic. Call it 13,000. 40k-13k = 27k dead from COVID-19.

The problem is that it was asserted that as many as 5 million residents of Wuhan had already departed the city for Chinese New Year of the Rat celebrations ahead of the Jan 23 closing of the city. These remained outside Wuhan during the epidemic because they were not permitted to return. If you leave 6 million in the city, the normal mortality rate of 0.7% yields 42,000 deaths annualized, or 3,500 a month. So there would have been just 7,000 deaths normally over the two-month period of the epidemic from non-epidemic causes. 40k-7k = 33k dead from COVID-19.  

But we'll probably never really know.