Viw Magazine


Health

  • Written by Simon Chapman, Emeritus Professor in Public Health, University of Sydney

US Vice President elect Mike Pence (who has been the recipient of funding from Big Tobacco) once famously wrote:

Time for a quick reality check. Despite the hysteria from the political class and the media, smoking doesn’t kill. In fact two out of every three smokers does [sic] not die from smoking-related illness and nine out of ten smokers do not contract lung cancer.

Pence is referring here to what epidemiologists call the “case fatality rate”: the proportion of deaths from a smoking-related illness to the number of new smoking-related illnesses diagnosed. According to him, the case fatality rate for long term smoking was “only” one in three, meaning only one in three long-term smokers die from a smoking-related illness (such as cardiovascular and respiratory diseases, and smoking related cancers), which somehow meant to him smoking doesn’t kill.

By Pence’s reasoning there are many other diseases that “do not kill”. This extensive list of various diseases’ case fatality rates shows many well known highly fatal diseases with case fatality rates lower than 33%.

These include oropharyngeal anthrax (anthrax that manifests in the mouth and throat), yellow fever, treated bubonic plague, diphtheria, meningococcal disease, legionnaires’ disease, dengue fever and untreated typhoid. The 1918 Spanish ‘flu which was estimated to have killed 50-100 million people globally, had a paltry case fatality rate of around 2.5%.

Pence was also wrong about the rate at which smoking kills. A landmark study of over 34,000 British male doctors (females were excluded when the study commenced in 1951 because there were insufficient numbers of women doctors at the time) has long been the benchmark for the risks of long term smoking.

When the study reported its 50 year follow-up of the cohort, it found “the eventual risks vary from about one half to about two thirds” of all doctors who had smoked had died from a tobacco-related disease.

An Australian study of 204,953 people also confirmed the two in three death rate from smoking.

Today smoking kills some six million people a year globally, and will kill one billion people this century if present trends continue.

The US is the only significant country to have not ratified the World Health Organisation’s Framework Convention on Tobacco Control (the US tends to not sign global treaties). Under a Trump administration, will we see the end of regulation and strict marketing protocols? Will the US be the only nation to ever see a rise in smoking rates after decades of continual falls?

Authors: Simon Chapman, Emeritus Professor in Public Health, University of Sydney

Read more http://theconversation.com/if-smoking-doesnt-kill-mike-pence-neither-does-the-plague-68750

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