Despite the popularity of vaping, the researchers say little is known about the possible health effects of direct exposure to nicotine vapor from the drug, the researchers say. e-leaf and other vaping devices.
And while exposure to particulate matter from e-cigarettes is lower than from regular cigarettes, levels of ultrafine particles in e-cigarette aerosols may be higher. This aerosol also contains volatile compounds and metals known to be harmful to lung tissue.
To further explore the impact on respiratory health, the researchers drew on information provided by 2090 participants in the Southern California Child Health Study.
This study collected annual detailed information on respiratory health, active and passive nicotine vapor, and exposure to common tobacco and marijuana smoke in households since 2014, when people Average participants were 17 years old, as of 2019.
Participants were considered to have bronchial symptoms if they reported any of the following: bronchitis in the previous 12 months; cough daily in the morning for 3 consecutive months; daily cough at other times of the day for 3 consecutive months; Congestion or phlegm is not a symptom of a cold.
Wheezing was based on self-reported wheezing or chest wheezing in the previous 12 months. And panting is based on this experience when running briskly on flat ground or walking up a small hill.
Most participants (76%-93%) who had been exposed to nicotine vaping in any of the study years were more likely to self-administer tobacco or cannabis products or have been exposed to vaping. passive smoking.
The rates of self-reported wheezing and bronchial symptoms increased from 12% to 15% and from 19.5% to 26%, respectively. The prevalence of dyspnea did not have a clear trend over time, ranging from 16.5% to 18%.
Compared with participants who were not exposed to passive vaping nicotine, those who did, were more likely to report bronchial symptoms and shortness of breath, but not wheezing.
After adjusting for passive smoking and marijuana exposure, and smoking or active smoking, those exposed to nicotine secondhand smoke were more likely to report bronchial symptoms. 40% higher and 53% higher dyspnea.
When the analysis was limited to 1181 participants who reported either no smoking or personal smoking in the past 30 days, stronger associations emerged.
These participants were twice as likely to report wheezing, three times more likely to report bronchial symptoms, and twice as likely to report shortness of breath compared with those not exposed to nicotine vaping receptors. active, after adjusting for demographic and passive factors. smoking/marijuana exposure.
This was an observational study, and as such, cause could not be determined. However, the researchers say the findings are of similar magnitude to those observed for passive smoking.
If proven causal in further studies, they suggest banning vaping in public places.
If causal, they write, reducing indoor e-cigarette exposure would reduce the burden of respiratory symptoms and would provide a compelling rationale for the regulation of tobacco use. e-cigarettes in public places.
In a linked editorial, Dr. Anna Lucia Fuentes and Laura Crotty Alexander, of the University of California San Diego and the San Diego Health Care System, point out that the vaping device was originally marketed as a Nicotine replacement has lower health risks.
They write: “But a growing body of evidence suggests otherwise. “What’s even more concerning is that the marketing has targeted a vulnerable adolescent population, with 78% of middle and high school students exposed to at least one tobacco ad. electronics from 2014 to 2016.”
They added: “Some may be comforted by studies arguing that nicotine use does not increase with an increase in vaping. However, it is important to note that nicotine levels are reported. on product labels and what is chemically measured can vary widely.
“This means that users may not know what they really are and are therefore at risk of unwittingly becoming nicotine addicts.”
They conclude: “Although the association is not causal, this study is the first to describe the negative effects of [secondhand nicotine vape] exposure to respiratory symptoms.
“More work needs to be done to demonstrate that this exposure directly causes harm. Ultimately, this is a public health concern that, if left unaddressed?? has the potential to impact. negatively on our population, including the most vulnerable.”