Smith S S, Fiore M C
Assistant Scientist, Center for Tobacco Research and Intervention, University of Wisconsin Medical School, Madison, Wisconsin 53706, USA.
Prim Care. 1999 Sep;26(3):433-61. doi: 10.1016/s0095-4543(05)70112-3.
Tobacco use, primarily in the form of cigarette smoking, is the leading preventable cause of death in the United States. After epidemic increases in current smoking in the first half of the 20th century, overall rates of smoking have decreased during the past 30 years. Certain sociodemographic groups continue to have high rates of tobacco use. The prevalence of current smoking in adults in the United States decreased from 42.4% in 1965 to 24.7% in 1995. Recent epidemiologic data indicate that 47 million adults currently smoke cigarettes and over 5 million use smokeless tobacco; over 3 million adolescents are current smokers and over 750,000 use smokeless tobacco. Thus, tobacco use continues to be a major public health concern.
烟草使用，主要形式为吸烟，是美国可预防的首要死因。在20世纪上半叶吸烟率呈流行趋势上升之后，过去30年中总体吸烟率有所下降。某些社会人口群体的烟草使用率仍然很高。美国成年人当前吸烟率从1965年的42.4%降至1995年的24.7%。最近的流行病学数据表明，目前有4700万成年人吸烟，超过500万人使用无烟烟草；超过300万青少年是当前吸烟者，超过75万人使用无烟烟草。因此，烟草使用仍然是一个主要的公共卫生问题。
