Dynamic typology clustering within the stages of change for smoking cessation

Dynamic typology clustering was employed to find homogeneous subgroups of smokers within each of three early stages of change (precontemplation, contemplation, preparation) in a representative sample of smokers. Individual change profiles were created by coding the stage of change for each subject a...

Full description

Saved in:
Bibliographic Details
Published in:Addictive behaviors 1998-03, Vol.23 (2), p.139-153
Main Authors: Norman, Gregory J., Velicer, Wayne F., Fava, Joseph L., Prochaska, James O.
Format: Article
Language:English
Subjects:
Adult
Aged
Analysis of Variance
Behavior modification
Behavior, Addictive - psychology
Biological and medical sciences
Cluster Analysis
Desintoxication. Drug withdrawal
Female
Humans
Longitudinal Studies
Male
Medical sciences
Middle Aged
Models, Psychological
Motivation
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Smoking cessation
Smoking Cessation - psychology
Thinking
Time Factors
Treatments
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Dynamic typology clustering was employed to find homogeneous subgroups of smokers within each of three early stages of change (precontemplation, contemplation, preparation) in a representative sample of smokers. Individual change profiles were created by coding the stage of change for each subject at five consecutive assessment points over a 2-year period (baseline and 6, 12, 18, and 24 months). A total of 446 unique change profiles were found in the sample of 2,088 smokers who had complete data for all five time points. The sample was initially split into three groups determined by baseline stage of change. Within each initial stage, subgroups that shared similar patterns of change were interpreted by examining the shape and elevation of the change profiles. Four major types of profiles emerged: a stable profile, a progressing profile, a vacillating profile, and a regressing profile. External validation revealed significant differences among the dynamic typology subtypes on key transtheoretical model constructs (processes of change, decisional balance, situational temptations). These results both support and complement key construct relationships within the transtheoretical model and can provide important predictive information to direct and enhance treatment interventions for smoking cessation.
ISSN:0306-4603
1873-6327
DOI:10.1016/S0306-4603(97)00039-7