Age, Sex, Existing Conditions of Covid-19 Cases and Deaths

Re:Age, Sex, Existing Conditions of Covid-19 Cases and Deaths by dredmorbius on Thursday February 27, 2020 @12:24PM (#22435408)

Looking at the numbers from Wei-jie Guan et al (https://www.medrxiv.org/content/10.1101/2020.02.06.20020974v...):

nonsmokers = 927 cases, 793 non-severe, 134 severe

exsmokers = 21 cases, 12 non-severe, 9 severe

smokers = 137 cases, 108 non-severe, 29 severe

That gives:

nonsmokers: 14% severe cases of presented

ex-smokers: 43% severe cases of presented

smokers: 21% severe cases of presented

The low number of ex-smokers as well as other factors (did they quit because of advanced smoking-related diseases, etc.?) makes that number hard to interpret.

But smoking carries a normalised average 40% increased risk of severe cases.

    100 * (21-14)/((21 + 14)/2) = 40

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Re:Age, Sex, Existing Conditions of Covid-19 Cases and Deaths by pqdfdsaff on Thursday February 27, 2020 @02:24PM (#22436799)

Isn't smoking much more common among the Chinese than this sample suggests? I would expect a random sample to include more smokers than not. It may imply that the act of smoking or the associated health states reduce the likelihood of infection, even if they increase the likelihood of a bad infection if it does land.

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