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Oct. 26, 2006 -- Nearly 21% of U.S. adults -- 45 million men and women -- smoked cigarettes last year, the same percentage as in 2004.
And Kentucky claimed the prize as the smokiest state.
The new statistics suggest "the 8-year decline in smoking prevalence among adults in the United States might be stalling," the CDC reports.
To revive the trend, the CDC suggests raising prices for tobacco products, launching quit-smoking media campaigns, and cutting smokers' out-of-pocket costs for quit-smoking programs, therapies, and counseling.
It's not that people weren't trying to quit smokingquit smoking.
About 19 million ditched cigarettes for at least one day last year in an attempt to quit, but they did not make it into the ranks of the 46.5 million Americans classified as former cigarette smokers in 2005.
The 2005 figures appear in the CDC's Morbidity and Mortality Weekly Report.
Data came from a nationwide government survey of more than 31,000 adults, 18 and older, who were interviewed in person.
Current smokers were defined as those who said they had smoked at least 100 cigarettes in their lifetime and reported smoking every day or some days.
Smokers' Statistics
The CDC estimates that 36.5 million people smoked cigarettes daily in 2005 (about eight in 10 current smokers)
About 8 million more smoked on some days, says the CDC.
Men were more likely than women to smoke cigarettes; nearly 24% of men were current cigarette smokers, compared to about 18% of women.
Young adults had the highest cigarette smoking rate of all age groups. Nearly a quarter of people 18-44 were current cigarette smokers.
Cigarette smoking was most common among people who hadn't finished high school, or who had a General Educational Development (GED) degree.
Ethnic statistics on cigarette smoking were as follows: