A new study by researchers at <<>> suggests that parents who quit smoking when their children are young may have a big influence on whether their offspring will quit smoking as young adults.
"We found that parents quitting smoking early, before their children reach third grade, is associated with nearly double the chances that their children would quit smoking in young adulthood," said Jonathan Bricker, Ph.D., a clinical psychologist and staff scientist in Fred Hutchinson's Public Health Sciences Division. These findings appear in the March issue of Addiction, which is published by the London-based Society for the Study of Addiction.
Since the early 1990s, the prevalence of daily smoking among young adults has risen by nearly 40 percent, giving those between 18 and 24 the unfortunate distinction of being more likely to smoke cigarettes than any other age group, according to the Centers for Disease Control and Prevention. What's more, low quitting rates among young-adult smokers underscore the need to find ways to help young adults quit, Bricker said.
"Overall, these findings suggest that helping parents quit smoking should be considered in future public-health interventions that target youth smoking," Bricker said.
These findings build on an earlier study by Bricker and colleagues, published in the May 2003 issue of Addiction, which that found parents who quit smoking before their children reached third grade significantly reduced their child's odds of becoming a smoker by their senior year of high school.
"Taken together, these two studies suggest that parents who quit smoking by the time their children are 8 or 9 years old may help prevent their children from becoming adolescent smokers and, if they do start, may help them quit smoking in young adulthood," said Bricker, also a clinical instructor in the University of Washington Department of Psychiatry and Behavioral Sciences.
The most surprising finding of the study, Bricker said, was that parents who quit smoking late, when their child was between third and 12th grade, had no impact on their child's quitting behavior in early adulthood.
"We had thought that parents quitting late might serve as a recent model of behavior that their children could remember and emulate, but our data did not show a significant result for late quitting," Bricker said. One possible explanation, he said, was lack of statistical power in their data; there simply were not enough young-adult quitters whose parents were late quitters enrolled in their study.
"Scientists should look into the late-quitting question," Bricker said. "It is conceivable that parents' late quitting may also help young adults quit, but we simply did not find any significant result for the question."