doi:10.2174/1570159X15666171016164430
One practical consideration: nicotine replacement therapy (patches, gum, lozenges) can produce positive cotinine results even after cigarette cessation meaning a former smoker using NRT to quit may still test positive for cotinine and be classified as a tobacco user at carriers that treat any positive cotinine as smoker-equivalent
These latter two were considered a more coarse form of taking tobacco and, as such, were deemed very "American" in nature by Europeans as spitting was a trait attributed to their usage
Currently, there is an increasing trend of smoking prevalence among young women, low socio-economic, racial/ethnic minorities, and vulnerable populations such as the LGBT community (lesbian, gay bisexual, and transgendered) (USDHS, 2004)
(1990) "Price elasticities from survey data: extensions and Indonesian results"