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These results, it seems to me, are more than just the opinion of a few statisticians, as you stated You have stated that there is nothing new, that the evidence is just statistical, and that no cause and effect relationship has been demonstrated. Your statement troubles me because I had always thought that such evidence as valid

Finally, conflicting epidemiologically data prevents a complete understanding of the relationship between smoking status and prevalence of S aureus 36,37,38,39

For example, some pads have multilayered space for air inflation

"Tobacco industry efforts to present ventilation as an alternative to smoke-free environments in North America"

Still, it lingers