Tobacco use and asking prices of used cars: prevalence, costs, and new opportunities for changing smoking behavior
2008

Tobacco Use and Asking Prices of Used Cars

Sample size: 1642 publication Evidence: moderate

Author Information

Author(s): Matt Georg E, Romero Romina, Ma Debbie S, Quintana Penelope J E, Hovell Melbourne F, Donohue Michael, Messer Karen, Salem Simon, Aguilar Mauricio, Boland Justin, Cullimore Jennifer, Crane Marissa, Junker Jonathan, Tassinario Peter, Timmermann Vera, Wong Kristen, Chatfield Dale

Primary Institution: San Diego State University

Hypothesis

In a community with extensive public health education campaigns, smoke-free cars would be offered at a premium compared to smoker cars.

Conclusion

Used nonsmoker cars were offered at a considerable premium above their Kelley Blue Book value and above comparable smoker cars.

Supporting Evidence

  • 22% of used cars were advertised by smokers or had been smoked in during the previous year.
  • 94% of nonsmokers did not allow smoking in their car during the past year.
  • Only 33% of smokers had the same restrictions.
  • Used nonsmoker cars were offered at a premium above their Kelley Blue Book value.

Takeaway

This study found that cars sold by smokers or that had been smoked in are worth less than smoke-free cars, showing that people prefer to buy cars that haven't been exposed to smoke.

Methodology

A random sample of 1,642 private party sellers were interviewed by telephone, and content analyses of print advertisements were conducted.

Potential Biases

Potential bias due to social undesirability of smoking behavior may have led to underreporting of smoking sellers and smoker cars.

Limitations

The study relied on self-reported information, which may lead to misreporting of smoking status.

Participant Demographics

Private party sellers aged 18 and older in the San Diego area.

Statistical Information

P-Value

p<0.001

Confidence Interval

95% CI: 15.9; 19.6

Statistical Significance

p<0.01

Digital Object Identifier (DOI)

10.1186/1617-9625-4-2

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