marlboro pouch tobacco Pouches, Spit Free, Rich 6 Ea | Chewing Tobacco Photograph by Craig Brewer Marlboro Red RYO Pouch (Switzerland)

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Incapsula incident ID: 567000130044641430-30271801417728878

Peripheral arterial disease

Several volunteers worked simultaneously in different rooms, having all the same configuration

Because of the absence of combustion and its carcinogenic traits, many people believe that vaping is harmless

Sample size and participants The sample size was calculated according to a rate of smoking in the last 12 months of 34% in the control group based on data from the ESTUDES 20162017 survey 4 and assuming a 20% rate in the intervention group, with an alpha level of 0.05 and 80% statistical power, giving a total of 141 students per group necessary