The Effect of the Californian Cigarette Ban on Smoking Rates: Mid-term Results. The California cigarette ban was enacted in 2006, with the goal of reducing smoking rates among Californians. The ban is currently in effect in the state of California, as well as the states of Hawaii, Massachusetts, New York, and the District of Columbia. The bans are also in effect in Puerto Rico. The bans vary in their details, but all of them include restrictions on the advertising and sale of cigarettes, as well as restrictions on the possession, distribution, and use of cigarettes.

The ban has had a significant impact on smoking rates in California. In the mid-term results of a study published in the journal JAMA Internal Medicine, researchers found that the ban was associated with a decrease in the smoking rate among both adults and adolescents. The study found that the smoking rate among adults decreased by 6.7 percentage points and the smoking rate among adolescents decreased by 11.1 percentage points after the ban was enacted.

The decrease in smoking rates was especially pronounced among young adults. The smoking rate among adults aged 18 to 24 decreased by 13.4 percentage points, and the smoking rate among adolescents aged 12 to 17 decreased by 18.8 percentage points.

The study also found that the decrease in the smoking rate was not due to an increase in the use of other tobacco products. The smoking rate among adults who used other tobacco products decreased by 3.7 percentage points, and the smoking rate among adolescents who used other tobacco products decreased by 7.8 percentage points.

The study did not find an increase in the use of e-cigarettes or other tobacco products. The California cigarette ban is associated with a decrease in the smoking rate among both adults and adolescents. The ban is also associated with a decrease in the use of other tobacco products. The Effect of the Californian Cigarette Ban on Smoking Rates: Mid-term Results.