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BALTIMORE, MD – A landmark study led by Johns Hopkins Medicine provides the clearest picture yet of the health risks associated with using only e-cigarettes. Analyzing health data from nearly 250,000 diverse individuals over a four-year period, researchers found a significant link between exclusive vaping and chronic obstructive pulmonary disease (COPD). The study also identified a potential increased risk of developing high blood pressure (hypertension) among exclusive vapers aged 30 to 70.
The findings, published recently in Nicotine & Tobacco Research and supported by the National Institutes of Health, underscore the potential health consequences of e-cigarette use, even when not combined with traditional smoking. Researchers anticipate these results will help inform public health guidelines and regulatory decisions concerning vaping products.
The extensive analysis confirmed that both traditional combustible cigarettes and e-cigarettes are associated with an increased risk and prevalence of COPD. However, the study highlighted that the association remains significantly stronger for traditional cigarette smokers. According to the CDC, smoking combustible cigarettes accounts for 8 out of 10 COPD-related deaths in the U.S.
E-cigarettes have rapidly become the second-most common form of tobacco use in the U.S., trailing only traditional cigarettes, and are particularly popular among adolescents and young adults. Data from the CDC indicates a rise in e-cigarette use among young adults from 3.7% in 2020 to 4.5% in 2021. Furthermore, nearly 30% of adult vapers in 2021 also smoked traditional cigarettes.
“There remains great uncertainty about the relative harm of e-cigarettes as compared to traditional smoking,” stated Dr. Michael Blaha, M.D., M.P.H., senior author of the study and professor of cardiology and epidemiology at the Johns Hopkins University School of Medicine. “Until now, there has been scant longitudinal data in large high-quality datasets linking exclusive e-cigarettes use to new-onset cardiometabolic health conditions.”
The research team analyzed medical information from 249,190 participants, categorizing them based on their use of e-cigarettes and traditional cigarettes: never users (203,932), exclusive e-cigarette users (3,164), exclusive combustible cigarette users (33,778), and dual users (8,316).
Over the nearly four-year follow-up period, the study tracked new diagnoses of several health conditions. Researchers found that exclusive e-cigarette use was significantly associated with new cases of COPD. While exclusive vaping was not significantly linked to new diagnoses of type 2 diabetes, heart failure, or atherosclerotic cardiovascular disease within the study’s timeframe, a sub-analysis revealed a small increased risk of hypertension specifically in the 30-70 age group who only vaped.
In stark contrast, the results showed that exclusively smoking traditional cigarettes significantly increased the risks for all tracked outcomes: hypertension, type 2 diabetes, COPD, heart failure, and atherosclerotic cardiovascular disease. Dual use of both product types showed similar elevated risks, sometimes slightly higher than smoking alone.
“These results are a critical stepping stone for future prospective research on the health effects of e-cigarettes,” Dr. Blaha commented. He noted that while this study didn’t find a link between exclusive vaping and cardiovascular events in the short term, the association with COPD and potential hypertension “will need to be closely watched over longer-term follow-up.”
Dr. Blaha concluded that the study suggests e-cigarettes carry definite health risks, although these risks may be lower than those associated with smoking traditional cigarettes alone.
Disclaimer: This news article is based on information from a study published in Nicotine & Tobacco Research. It is intended for informational purposes only and does not constitute medical advice. Consult with a healthcare professional for any health concerns or before making any decisions related to your health or treatment.
