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Int J Epidemiol. 2015 Oct;44(5):1537-46. doi: 10.1093/ije/dyu135. Epub 2014 Jul 13.

Cohort Profile: The Nicotine Dependence in Teens (NDIT) Study.

Author information

1
Centre de Recherche CHUM, Montreal, QC, Canada, Department of Social and Preventive Medicine, University of Montreal, Montreal, QC, Canada, Institut National de Santé Publique du Québec, Montreal, QC, Canada, jennifer.oloughlin@umontreal.ca.
2
Centre de Recherche CHUM, Montreal, QC, Canada.
3
School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada.
4
Department of Family Medicine and Community Health, University of Massachusetts Medical School, Worcester, MA, USA.
5
Department of Medicine and Genetics, McGill University, Montreal, QC, Canada, Research Institute of the McGill University Health Center, Montreal, QC, Canada.
6
Agence de la Santé et des Services Sociaux, Direction de Santé Publique, Montréal, QC, Canada.
7
School of Dietetics and Human Nutrition and.
8
Centre de Recherche CHUM, Montreal, QC, Canada, Department of Social and Preventive Medicine, University of Montreal, Montreal, QC, Canada.
9
Department of Psychiatry, McGill University, Montreal, QC, Canada.
10
Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, ON, Canada.
11
Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Toronto, ON, Canada Department of Psychiatry and Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.

Abstract

The Nicotine Dependence in Teens (NDIT) study is a prospective cohort investigation of 1294 students recruited in 1999-2000 from all grade 7 classes in a convenience sample of 10 high schools in Montreal, Canada. Its primary objectives were to study the natural course and determinants of cigarette smoking and nicotine dependence in novice smokers. The main source of data was self-report questionnaires administered in class at school every 3 months from grade 7 to grade 11 (1999-2005), for a total of 20 survey cycles during high school education. Questionnaires were also completed after graduation from high school in 2007-08 and 2011-12 (survey cycles 21 and 22, respectively) when participants were aged 20 and 24 years on average, respectively. In addition to its primary objectives, NDIT has embedded studies on obesity, blood pressure, physical activity, team sports, sedentary behaviour, diet, genetics, alcohol use, use of illicit drugs, second-hand smoke, gambling, sleep and mental health. Results to date are described in 58 publications, 20 manuscripts in preparation, 13 MSc and PhD theses and 111 conference presentations. Access to NDIT data is open to university-appointed or affiliated investigators and to masters, doctoral and postdoctoral students, through their primary supervisor (www.nditstudy.ca).

PMID:
25022274
PMCID:
PMC4681104
DOI:
10.1093/ije/dyu135
[Indexed for MEDLINE]
Free PMC Article

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