After the Sept. 11, 2001, terror attacks, a million former U.S. smokers took up the habit again and kept puffing for at least two years, a researcher says.
Dr. Michael F. Pesko, an instructor in Weill Cornell Medical College's Department of Public Health in New York, said an examination of data from the Behavioral Risk Factor Surveillance System and found 950,000 to 1.3 million adult former smokers resumed smoking, representing a 2.3 percent increase nationwide.
There was no increase in the months and years following the 1995 Oklahoma City bombing, the study found.
"This study provides the first unbiased estimate of the effect of stress on smoking, and the finding that there was such a big increase in smoking nationwide, seemingly due to one event, is extraordinary, and surprising," Pesko, the study author, said in a statement. "It sheds light on a hidden cost of terrorism."
The Behavioral Risk Factor Surveillance System tracked annual rates of risky personal behavior across the nation after the Sept.11, 2001, attacks and the Oklahoma City bombing.
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