Note that the analyses could have been based on a single large model, with planned contrasts, but we found the present pairwise approach more transparent, and the separate models are also less restrictive than a full model
States with among the highest tobacco excise taxes lose billions in revenue to smuggling, according to the Mackinac Center, estimating that over half of all cigarettes consumed in New York originate in states with lower excise taxes
Environmental conditions such as humidity, the efficiency of the urban cleaning system in reducing the resistance of littered filters, the difference in the quality of the filter and tobacco, and the difference in smoking behaviors were effective in this variation
Vapes are new smoking devices that claim to be less harmful
The CDC reported in 2015 that more than 9 million American adults vape regularly