The F statistic for assessing the relationship between a predictor variable (e.g., daily cigarette consumption, cigarettes/day) and dissimilarities in connectivity is calculated as follows: For m predictor values, let X be a n m design matrix of predictor values, and let H = X ( X T X ) 1 X T be the associated n m hat matrix
State Tobacco products include, but are not limited to, cigarettes, clove and hand-rolled cigarettes, cigars, pipe tobacco, electronic cigarettes, hookah, vaping pen, electronic smoking device, alternative nicotine products, chewing tobacco and snuff, or cigarette rolling papers
On the Frontlines of Tobacco Control A conversation with Yolonda C
Recall, quitting smoking is a significant achievement, and you should be proud of yourself for taking the first step towards a healthier lifestyle