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Repeat negative CT scan for lung cancer does not encourage ex-smokers to resume the habit
Date:12/2/2009

w-up.

The reassurance provided by lung cancer screening was assessed by comparing smoking behaviors of those with negative scans to those with positive scans, which further testing showed was not malignant. The goal of the study was to define whether consistently negative screening results were associated with less cessation and more relapse over a six-year interval in participants undergoing annual CT screening for lung cancer.

Researchers found that participants who consistently received a negative CT scan had a 28 percent lower likelihood of abstinence from one follow-up to another, compared to those who had a positive result. But over a six-year period, that difference disappeared. There was no significant difference in likelihood of relapse between those with positive and negative scans among any of these groups: former smokers, recent quitters or current smokers who quit during the study.

The 30 percent smoking abstinence rate from this group was also higher than the 23 percent rate reported from a match sample of the U.S population, Burns said.

"This is the first examination of smoking cessation outcomes in a population of individuals being screened for lung cancer with follow-up that is longer than three years, and it shows us that reassurance provided by a negative scan may not be a factor determining long-term abstinence," he said.


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Contact: Jeremy Moore
jeremy.moore@aacr.org
267-646-0557
American Association for Cancer Research
Source:Eurekalert

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