Related Experiment Video
Updated: May 2, 2026

Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System
Published on: May 24, 2017
Do Sources of Cigarettes Among Adolescents Vary by Age Over Time?
Kathleen M Lenk1, Traci L Toomey1, Qun Shi1
1Division of Epidemiology and Community Health School of Public Health, University of Minnesota Minneapolis, MN.
Abstract:
Trends in sources of cigarettes among adolescents were assessed using data from a teen cohort (2000-2006). Five sources-bought from store, got from other teen, stole from others, bought from others, and got from an adult-were measured over time by age. The most common source among all ages was other teens. Fewer teens bought cigarettes from stores, with a downward trend for all ages. Among all ages there was an upward trend in stealing with younger teens more likely to steal cigarettes. In addition to targeting cigarette sales, interventions are needed to target other youth cigarette sources.
More Related Videos
08:39Generation of Electronic Cigarette Aerosol by a Third-Generation Machine-Vaping Device: Application to Toxicological Studies
Published on: August 25, 2018
09:30A Microcontroller Operated Device for the Generation of Liquid Extracts from Conventional Cigarette Smoke and Electronic Cigarette Aerosol
Published on: January 18, 2018
Related Concept Videos
Cross-Sectional Research
Stimulants
Cocaine can be administered via snorting, injection, or smoking. It primarily functions by blocking the reuptake of dopamine, resulting in a euphoric high characterized by an intense sensation of happiness and...
Statistical Methods for Analyzing Epidemiological Data
Longitudinal Research
Observational Studies
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One...
Influence of Parents and Peers on Identity
Parental Influence on Identity Development
Parents serve as primary guides and managers in an adolescent's life, offering support instrumental in decision-making and personal growth....