ST. LOUIS — States that want to reduce rates of adult smoking may consider implementing stringent tobacco restrictions on teens, suggested a new study released by researchers at Washington University School of Medicine in St. Louis on Thursday.
The researchers discovered that states with more restrictive limits on teens purchasing tobacco also have lower adult smoking rates, especially among women. And compared with states with less restrictive limits, they also tend to have fewer adult heavy smokers.
“In most states for many years, it has been illegal to sell cigarettes to people under 18, but few provisions are in place to prevent those sales,” stated the study’s first author Richard Grucza, associate professor of psychiatry at the university. “This study shows that more restrictive policies can prevent teen smoking and be beneficial down the road.”
Studying information gathered from 1998 to 2007 from 105,519 individuals ages 18 to 34 years, the researchers looked at whether people ever had smoked, whether they were currently smoking and, if they did smoke, whether they smoked more than 10 cigarettes per day.
They also looked at the smoking restrictions in place in states when the study subjects were 17 years old.
But how individual states chose to enforce the laws varied. Grucza’s team focused on nine smoking-related policies and found that in states with enforcement policies, not only did 17 year olds have more difficulty purchasing cigarettes, but when they reached their 20s or 30s, they were less likely to smoke.
“We estimated that if all states had effective policies in place, it would reduce the prevalence of smoking by about 14% and the rates of heavy smoking by 29%,” he said.
The four most effective restrictions included those on cigarette vending machines, in which the machines either were eliminated or housed in locations inaccessible to those under 18 [years old]; identification requirements for purchasing cigarettes; restrictions on repackaging cigarettes so that five or 10 could be sold at a time, rather than an entire 20-cigarette pack; and prohibiting distribution of free cigarettes at public events. “A lot of states still have not adopted all of these policies,” Grucza explained. “In 2006, which is the last year for which we have data, only four states required a photo ID, and only 20 states had any kind of identification requirements at all. So, there’s still a lot of room for improvement.”
Grucza said some states are considering restricting youth access even more. In New York, there is a proposal to raise the age for tobacco purchases to 21. Meanwhile, in Alabama, Mississippi, Alaska and Utah, the minimum age for tobacco purchases already has been raised to 19.
Researchers found the policies to restrict youth access to tobacco had a big impact on women but didn’t seem to influence smoking rates in men. “We can only speculate about why, but a number of past studies have shown that underage women and girls often have an easier time getting alcohol or tobacco than underage men,” Grucza said. “We suspect that policies like those that require checking IDs may have evened things out by making it just as difficult for underage women to buy cigarettes as it is for underage men.”
Because cigarettes have been regulated by the Food and Drug Administration since 2009, many of the more restrictive policies are in effect nationally. Grucza’s team believes future smoking rates among adults may decline at least partly as a result of those policies.
Grucza’s team evaluated data from an ongoing National Cancer Institute survey that monitors smoking behavior in all 50 states. The study was published online June 13 in the American Journal of Public Health.