The study, titled “Parent-Reported Household Tobacco and E-cigarette Exposure and Asthma Control in Children: A Cross-Sectional Study,” drew on electronic health record data from a large, diverse urban pediatric primary care network affiliated with Children’s Hospital of Philadelphia. The research team examined encounters recorded between July 2023 and March 2026, a 33-month window in which parents of children aged one year or older with an asthma diagnosis completed two standardized instruments: a parent tobacco treatment platform that asked who in the family used combustible tobacco or e-cigarettes, and an asthma control tool that assessed symptoms, medication use, and healthcare utilization. By pairing these two data sources across tens of thousands of visits, the investigators were able to examine how different patterns of household nicotine use tracked with day-to-day asthma outcomes as reported by the people who know the children best.

The scale of the dataset is one of its distinguishing strengths. Among 48,118 eligible encounters, 48 percent involved children aged six to twelve years, 42 percent were female, 34 percent were Non-Hispanic Black, 43 percent were covered by Medicaid, and 30 percent came from neighborhoods rated as having very low opportunity by the Child Opportunity Index. Household use of both tobacco and e-cigarettes was reported in 5 percent of visits, or 2,500 encounters; tobacco-only use in 9 percent, or 4,238 encounters; and e-cigarette-only use in 3 percent, or 1,427 encounters. This diversity matters, because asthma burden and tobacco exposure are not evenly distributed across pediatric populations, and the study’s statistical adjustments were designed to account for exactly these sociodemographic differences.

To isolate the effect of household exposure from other factors that influence asthma control, the researchers used multivariable logistic regression, estimating adjusted odds ratios with 95 percent confidence intervals while controlling for child age, sex, insurance status, and the Child Opportunity Index of the child’s neighborhood. The Children’s Hospital of Philadelphia institutional review board deemed the study exempt under the Common Rule. The statistical approach allowed the team to ask a deceptively simple question: after accounting for a family’s circumstances, does the presence of tobacco or e-cigarette use in the home still predict poorer asthma control? The answer, across multiple outcome domains, was yes.

Children exposed to both combustible tobacco and e-cigarettes in the home showed the broadest and strongest associations with poor asthma outcomes. Combined exposure was linked to more activity-related symptoms, with an adjusted odds ratio of 1.3; more nighttime symptoms, also 1.3; greater albuterol or rescue inhaler use, at 1.2; worse parent ratings of asthma control, at 1.3; lower parental comfort with asthma management, at 1.3; and hospital admissions in the past year, at 1.2. Children with combined exposure were also more likely to have poorly controlled asthma status, at 1.1, and were substantially more likely to have uncontrolled asthma, with an adjusted odds ratio of 1.4. In practical terms, this means more flares, more disrupted sleep, more missed activity, and more hospital stays for the children breathing air shared with the heaviest household nicotine users.

The most striking result, however, concerned e-cigarettes alone. E-cigarette-only exposure was independently associated with more asthma flares, with an adjusted odds ratio of 1.3, and more activity-related symptoms, at 1.4 — figures comparable to or exceeding those seen with combined tobacco and e-cigarette exposure. Tobacco-only exposure showed more modest but still significant associations across multiple domains. Not every measure moved in the same way: parent-reported emergency department or urgent care utilization and oral steroid use were not significantly associated with any exposure type after adjustment. But the pattern across flares, symptoms, and hospitalizations paints a consistent picture that vapor is not benign for asthmatic airways.

“There is no safe level of tobacco or e-cigarette exposure when it comes to children. Parents and caregivers who use any tobacco or nicotine products should make every effort to quit, using evidence-based options like varenicline, nicotine replacement therapy, and counseling,” said Brian Jenssen, MD, MSHP, FAAP, associate professor of pediatrics at Children’s Hospital of Philadelphia and the study’s principal investigator. His message to families is blunt: the long-promoted idea that vaping indoors is a harm-reduction strategy for households with children does not survive contact with the data on pediatric asthma.

“Many parents believe e-cigarettes are a safer alternative to cigarettes, both for themselves and for their children’s health. Our findings suggest that assumption doesn’t fully hold up for kids with asthma,” Jenssen said. He also framed the results as a call to action for clinicians: “It reinforces the need for pediatric care teams to screen for all forms of household nicotine and tobacco use — not just cigarettes — and to offer cessation support for both, as part of routine asthma care.” In other words, the clinic visit for an asthma flare may itself be the most teachable moment to ask not only whether anyone in the home smokes cigarettes, but whether anyone vapes — and to have cessation resources ready for either answer.

The biological plausibility behind these associations is well established in the broader literature. Secondhand smoke worsens respiratory illnesses in children, and asthma is particularly sensitive to inhaled irritants, which provoke airway inflammation, mucus production, and bronchial hyperreactivity. E-cigarette aerosols contain nicotine, ultrafine particles, flavoring compounds, and thermal degradation products, several of which are known to irritate or damage respiratory epithelium. What has been lacking until now is large-scale, real-world evidence on how e-cigarette exposure alone affects asthma control in children — a gap this study helps fill by showing that vapor-only households still carry measurable risk for the asthmatic children living in them.

The authors are careful to note the study’s design: it is cross-sectional, capturing exposure and outcomes at the same point in time, so it demonstrates associations rather than proving causation, and it relies on parent-reported exposure and asthma control rather than objective biomarkers or clinical measures. Still, the sheer number of encounters, the diversity of the population, and the consistency of the adjusted associations across symptom, medication, and hospitalization domains give the findings considerable weight. The work was funded by the National Institutes of Health under grant R37-CA282153, with Jenssen as principal investigator. Jenssen is scheduled to present the research at 3:40 p.m. PT on Saturday, October 3, at the Marriott Marquis, for the conference’s Section on Nicotine and Tobacco Prevention and Treatment, and will participate in a press Soundbite Session on Sunday, October 4. For the estimated six million American children with asthma — and the many households where a parent vapes believing it protects their kids — the study’s core conclusion lands with force: when a child’s lungs are already inflamed, the air they breathe at home matters, whatever form the nicotine takes.

Subject of Research: Household tobacco and e-cigarette exposure and asthma control in children

Article Title: E-cigarettes, tobacco in-home exposure linked to children’s asthma flare-ups

Article References: E-cigarettes, tobacco in-home exposure linked to children’s asthma flare-ups. (n.d.). Original publication

Image Credits: AI Generated

DOI: Not provided

Keywords: e-cigarettes, secondhand smoke, pediatric asthma, asthma control, tobacco exposure, nicotine, Children's Hospital of Philadelphia, American Academy of Pediatrics, public health, smoking cessation, respiratory health, cross-sectional study

The study, presented under the title Tracking Pediatric Health Misinformation Clinicians Hear to Build an Institutional Response, describes a practical surveillance system built inside a large pediatric hospital. Rather than treating each misinformation encounter as an isolated event to be corrected on the spot, the CHOP team created a structured way to log those encounters, aggregate them, and analyze the patterns that emerged. The result is a feedback loop in which the questions and doubts voiced in exam rooms directly shape the educational materials the institution produces for patients, families, and its own clinicians.

The technical backbone of the system is a survey tracking tool built on REDCap, a widely used electronic data capture platform in academic medical research. The survey was distributed across CHOP clinical environments through fliers, emails, and a link embedded directly in the hospital’s electronic health record system, Epic, making it easy for busy clinicians to report misinformation they encountered during routine care. Respondents were asked what misinformation they had heard, which category it fit into, whether they felt prepared to address it, what strategies they used, and whether or not their approach worked, along with additional demographic questions about the respondent.

To make the collected data actionable, the researchers paired the survey with a Qliksense dashboard that provides real-time insights into survey entries. A multidisciplinary team, including a pediatrician, a neonatologist, public relations and marketing specialists, a data analyst, and a journalist, meets monthly to review the trending topics and decide which ones warrant new patient education content or internal clinician training. This combination of lightweight data collection, live analytics, and regular cross-disciplinary review is what transforms scattered anecdotes into an institutional response capable of keeping pace with rapidly shifting misinformation trends.

Between May 2025 and March 2026, the tracking tool recorded 234 entries from clinicians across the hospital. The single largest category was vaccine misinformation, which accounted for 53.8 percent of all entries, confirming that immunization remains the dominant battleground for pediatric health myths. Trending keywords included aluminum, acetaminophen, ADHD, and antibiotics, reflecting the specific concerns circulating in the community the hospital serves. Beyond vaccines, the topics ranged across categories such as distrust in healthcare, supplements, miracle cures, and unnecessary interventions, illustrating how broad and varied the misinformation landscape confronting pediatric clinicians has become.

The survey also yielded revealing data about how prepared clinicians feel when confronting misinformation, and how effective they actually are. On a scale of 1 to 100, respondents reported a median preparedness score of 77 in responding to misinformation from patients. Yet only 28 percent reported that their approach actually worked in changing a patient’s or family’s perspective. That gap between confidence and effectiveness is one of the study’s most striking findings, and it underscores a problem familiar to communication researchers: simply knowing the science is often not enough to counter a belief that is emotionally or socially anchored.

Experience, interestingly, cut in both directions. Median preparedness scores increased with years of practice, suggesting that seasoned clinicians feel more comfortable engaging with misinformation. However, more years in practice was associated with lower chances that their approach actually worked. The findings hint that the communication techniques that come naturally to experienced physicians may not be the ones best suited to changing minds, and that formal training in misinformation response could benefit clinicians at every career stage. It was precisely this kind of insight that informed the internal education initiatives the hospital subsequently developed.

The practical output of the tracking system has been substantial. The entries have driven the creation of new patient education and public health social media content on 28 topics, including videos and blog posts, along with seven corresponding opinion editorials published in the Philadelphia Inquirer. The external-facing component is a website called Pediatric Health Chat, which contains educational information specifically designed to debunk the misinformation families reported encountering in their everyday lives. In addition, the team launched a weekly educational email on vaccine communication skills, which has run for ten weeks and counting of clinician education content informed directly by the REDCap entries.

Katie Lockwood, MD, MEd, FAAP, study author and pediatrician at CHOP, framed the approach as a way of listening to families more systematically. Looking at these trends allowed the team to see in real time what was worrying the families they care for and to give them the most up-to-date science on topics of interest, she said. Addressing pediatric health misinformation is vital to protecting the health of children, she added, and as trusted messengers, children’s hospitals have an obligation to respond. The research showed that systematically tracking the misinformation families encounter can turn clinicians’ real-world questions into effective, targeted education, even when individual corrective conversations fall short.

The implications extend well beyond a single institution. Although fewer than one-third of survey respondents said their own responses worked, the aggregated findings gave providers a clearer understanding of families’ concerns and helped guide materials for patients, families, and other clinicians. The researchers state that the approach could be replicated in other hospitals and care settings to help build trust with patients and caregivers and provide them the information they need most to keep children healthy. In an era when misinformation spreads faster than any press release, the CHOP model offers a template for meeting families where their worries actually are, using the clinical encounter itself as a sensor for the information environment surrounding children’s health.

Subject of Research: Tracking pediatric health misinformation in clinical encounters to build institutional patient education responses

Article Title: Monitoring online health misinformation can help create useful patient education content

Article References: Monitoring online health misinformation can help create useful patient education content. (n.d.). Original publication

Image Credits: AI Generated

DOI: Not provided

Keywords: health misinformation, pediatrics, vaccine misinformation, patient education, Children's Hospital of Philadelphia, American Academy of Pediatrics, clinical communication, REDCap, clinician training, public health messaging, social media, Pediatric Health Chat