According to Rochester University, the normal cotinine levels in a non-smoker's urine sample are less than 10 ng/mL
If an article reported multiple effect estimates resulting from stratified analysis (for example, by sex, geographic area or age group), these estimates were combined to provide a single OR, RR, HR or coefficient for the overall study
They are exactly as I expected
However, drawbacks consist of side effects such as skin irritation from patches, gastrointestinal discomfort from gum or lozenges, and the potential for continued nicotine dependence if not used as directed
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