Vaping Damages Your Lungs, But Is Still Safer Than Smoking, a Long-Term Study Suggests
“This study actually does support the harm reduction potential of e-cigarettes,” says Andy Tan, an assistant professor of population sciences at Dana-Farber Cancer Institute who has studied e-cigarettes. “Yes, vaping is associated with about 29% to 31% higher odds of subsequent lung disease within two to three years than not vaping—but compare this with the 156% higher odds of using combustible tobacco than not smoking.
For the purposes of the study, Glantz and his co-author combined four conditions—chronic obstructive pulmonary disease , chronic bronchitis, emphysema and asthma—into one respiratory disease umbrella. They used data provided by about 32,000 adults who responded to the U.S. National Institutes of Health’s Population Assessment of Tobacco and Health study, which asks individuals about their tobacco-product use, general health and demographic profile.
When respondents first joined the PATH study, about 5,500 already had respiratory disease. About 12% of the total sample identified as former e-cigarette users, while 5.5% were current users. Meanwhile, 45% were former combustible tobacco users and 26% were current users. The individuals were then asked to take follow-up PATH surveys one and two years later, reporting any changes to their tobacco use and health. About 1,100 people developed respiratory disease in the following years. The researchers found that both nicotine e-cigarette and combustible tobacco use were associated with a higher risk of developing respiratory disease, but vaping seemed to be less dangerous than smoking—and using either product alone was better than using both.
Glantz says that’s the most important finding from the paper, since about 60% of adult vapers also smoke, according to the U.S. Centers for Disease Control and Prevention’s
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