Document Detail

A discrete time hazards model of smoking initiation among West Coast youth from age 5 to 23.
MedLine Citation:
PMID:  17055040     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To identify factors associated with age of smoking initiation and distinguish vulnerable periods for initiation according to those factors. METHOD: Discrete time hazards analysis was used to model smoking initiation as a function of age (5-23), demographic and familial influence variables (measured at age 13), and their interactions in a cohort of 6255 youths who completed six assessments over a 10-year period from age 13 to 23 years. RESULTS: Half of the sample had initiated smoking by age 13, and the hazard for initiation was greatest between ages 13 and 15. In addition to differences associated with race/ethnicity, protective factors for smoking initiation included high parental education and having an intact family of origin. Having an older sibling and participant's exposure to smoking by an important adult were both risk factors, with the latter having a stronger effect for females and Blacks. For all effects, the strength of the association differed across the age range. CONCLUSIONS: The impact of demographic and family influence factors on smoking initiation varies over time. However, the maximum risk for initiation is during the early teen years, and the range of considerable vulnerability is during middle school and high school.
Maria Orlando Edelen; Joan S Tucker; Phyllis L Ellickson
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-10-19
Journal Detail:
Title:  Preventive medicine     Volume:  44     ISSN:  0091-7435     ISO Abbreviation:  Prev Med     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2007-01-15     Completed Date:  2007-04-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0322116     Medline TA:  Prev Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  52-4     Citation Subset:  IM    
RAND Corporation, Behavioral and Social Sciences Group, 1776 Main Street, PO Box 2138, Santa Monica, CA 90407-2138, USA.
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MeSH Terms
Actuarial Analysis
Age Factors
Child, Preschool
Cohort Studies
Cross-Sectional Studies
Proportional Hazards Models*
Risk Assessment / statistics & numerical data
Smoking / epidemiology*,  prevention & control*
Social Environment

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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