No single study provides a complete picture. The VapeScan Study has important limitations that readers should understand:
Key limitations: The study is cross-sectional, meaning it captures a single point in time rather than tracking changes over years. Cross-sectional studies can show associations but cannot prove causation. The median vaping duration of 4 years may be too short to detect long-term cardiovascular damage, particularly coronary calcification, which takes decades to develop. The study also relied on self-reported vaping habits (puffs per day, years of use), which may not perfectly reflect actual exposure.
- Cross-sectional design: Cannot determine whether vaping caused the higher blood pressure or whether people with higher blood pressure were more likely to vape. Longitudinal studies are needed to establish causation.
- Sample size by group: While 372 total participants is substantial, some subgroups (especially dual users) may have been too small to detect statistically significant differences.
- Self-reported vaping data: Puffs per day, nicotine concentration, and years of use were self-reported. Urinary cotinine was measured in only 110 participants, and self-reported data may include measurement error.
- NYC metro area only: Participants were recruited in the New York City area, which may limit generalizability to other populations or regions.
- Short exposure duration: Median 4 years of vaping may be insufficient to detect long-term effects like coronary calcification or clinical cardiovascular events.
- Funding considerations: The study was funded by the National Institutes of Health (NIH) and the American Heart Association. No industry funding was reported, which supports independence, but readers should always verify funding sources.
For a broader perspective on vaping science, see our analysis of [menthol vape switching rates](menthol-vape-switching-science-full), which covers the evidence that menthol-flavored e-cigarettes help adult smokers switch from combustible cigarettes.
