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Associations between smoking and heritable temperament traits.
Jean-François Etter1, Antoine Pélissolo, Cynthia Pomerleau
1Institute of Social and Preventive Medicine, University of Geneva, Switzerland. jean-francois.etter@imsp.unige.ch
Summary
Smoking is linked to heritable temperament traits, according to Cloninger's theory. Specific traits like Harm Avoidance and Novelty Seeking differ between smokers and non-smokers, influencing dependence and cessation.
Area of Science:
- Neuropsychopharmacology
- Behavioral Genetics
- Psychiatry
Background:
- Cloninger's theory links heritable temperament traits to neurotransmitter activity.
- Understanding these links may provide insights into behavioral patterns like smoking.
- Previous research has not extensively explored the association between specific temperament traits and smoking behavior.
Purpose of the Study:
- To investigate the association between heritable temperament traits and smoking behavior.
- To determine if specific temperament dimensions predict smoking status, dependence, and cessation.
- To explore the implications for tobacco dependence treatment and prevention.
Main Methods:
- Utilized the French-language version of the Temperament and Character Inventory (TCI) to assess four temperament dimensions: Novelty Seeking (NS), Reward Dependence (RD), Harm Avoidance (HA), and Persistence (P).
- Collected data from three distinct online samples between 2000-2001, with sample sizes for each TCI dimension ranging from 775 to 1,383 participants.
- Employed statistical analyses to examine correlations between temperament traits and smoking status (never-smoker, ever-smoker, former smoker, current smoker), tobacco dependence levels, motivation to quit, and age at smoking cessation.
Main Results:
- Never-smokers had lower Harm Avoidance (HA) and Novelty Seeking (NS) compared to ever-smokers.
- Former smokers exhibited lower Reward Dependence (RD) and Persistence (P) than current smokers.
- Tobacco dependence correlated with NS subscore Extravagance; motivation to quit was associated with RD subscore Sentimentality and negatively with HA subscore Fear of Uncertainty.
- Age at smoking cessation in ex-smokers was negatively associated with P and positively with HA subscore Fatigability and NS subscore Disorderliness.
Conclusions:
- Heritable temperament traits are significantly associated with smoking behavior.
- These findings suggest that individual differences in temperament may play a role in smoking initiation, maintenance, and cessation.
- The identified temperament-trait associations offer potential targets for personalized interventions in tobacco dependence treatment and prevention strategies.