regular smoking associated_with cigarettes
Evidence from:
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Evidence (4 sources)
A population-based twin study of the genetic and environmental relationship of major depression, regular tobacco use and nicotine dependence.
(2011)
PMID:20406522
cited
We considered an individual as a ‘regular smoker’ ... if ... weekly use of cigarettes.
confidence: 0.96
A population-based twin study of the genetic and environmental relationship of major depression, regular tobacco use and nicotine dependence.
(2011)
PMID:20406522
cited
for both cigarettes and snus – can be accounted for entirely by genetic factors shared by these traits.
confidence: 0.90
Incorporating age at onset of smoking into genetic models for nicotine dependence: evidence for interaction with multiple genes.
(2010)
PMID:20624154
cited
Regular smoking was defined as having smoked at least once a week for a period of at least two months.
confidence: 0.95
Peer substance involvement modifies genetic influences on regular substance involvement in young women.
(2010)
PMID:20569232
cited
Regular cigarette smoking was defined as a lifetime history of either (a) smoking 100 or more cigarettes ...
confidence: 0.95