Statistics shows, that about 52% of men and 34% of women were cigarette smokers in 1965 in the USA. Nowadays the percent of smokers has decreased to 28% and 24%. The incidence of smoking is highest in blue-collar workers, persons in the lower socioeconomic strata, blacks, less-educated persons and the trend is decreasing in more educated persons.

  The researches show that 30.7% of women with less than 12 years of education, 29.6% of high school graduates and 15.1% of college graduates smoke.  In 1983, a comparison was made between white-collar workers, of whom 27.9% smoked, and blue-collar workers, of whom 42.7% smoked.

  About 25% of pregnant women who smoke quit during pregnancy; yet 80% resume smoking after childbirth. Of men : 40% of with less than 12 years of education, about 17.4% of college graduates, 35.9% of high school graduate smoke. Statistics shows that 20% of teenage girls smoke and 15% of teenage boys smoke. The lowest incidence of daily cigarette use - reaching about 36 percent - occurred among 15- to 24-year-olds. This figure rose in successive age groups to a peak of 60 percent among 45- to 54-year-olds. 

Near 70 % of smokers want to stop smoking,  20 %  try to quit smoking and stop  smoking for a year, while only around 3 % succeed in quitting using willpower alone.

  The health after-effects of this addiction are rather danger, because it  causes cancer-related deaths. Tobacco accounts for more than 85% of all deaths due to lung cancer. About 10 million people in the United States have died from causes attributed to smoking; 2 million of these were from lung cancer alone.  Children smoke 1.1 billion packs of cigarettes every  year.

  In 1987, 39% of the black male population were smokers, compared to 30.5% of white men; 28% of black women were smokers, as opposed to 26.7% of white women. In addition, 30% of Hispanic men and 18% of Hispanic women were smokers. In 1988 oral cancer was the cause of almost 2.1% of male cancer-related deaths and 1.2% of female cancer-related deaths. Smoking was the reason of death from cancer of 1.1% in men and 0.3% of women. 

   Tobacco and cigarette smoking are major causes of this disease. Bladder cancer was the cause of  almost  2.4% of male deaths and 1.3% of female deaths.The reason of one third of these deaths was cigarette smoking. Accoding to research data about 50 % of lung cancer patients resume smoking after undergoing surgery.

  Nonsmokers also have a  risk of cancers and pulmonary diseases if they are passive smoker. Concentrations of toxins and carcinogens are higher in sidestream smoke. Children exposed to secondhand smoke develop a variety of respiratory disorders and morbidity.

  Accoding to research data the number of young adults and teenagers who smoke cigarettes daily has declined in the United States over the past 20 years.