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Screening for children's exposure to environmental tobacco smoke in a pediatric primary care setting
Judith A Groner1, Stacy Hoshaw-Woodard, Gideon Koren
1Sections of Ambulatory Pediatric, Department of Pediatrics, Center for Biostatistics, The Ohio State University College of Medicine & Public Health, 700 Children's Drive, Columbus, OH, USA. jgroner@chi.osu.edu
Insights
Pediatricians can now use three simple questions to screen for children's environmental tobacco smoke (ETS) exposure. This tool accurately predicts high ETS risk, as measured by hair cotinine levels, aiding in early intervention.
Area of Science:
- Pediatric Environmental Health
- Biomarkers of Exposure
- Public Health Interventions
Background:
- Pediatricians are advised to assess environmental tobacco smoke (ETS) exposure in children.
- Identifying children with high ETS exposure requires effective screening tools.
- Hair cotinine levels serve as a reliable long-term biomarker for ETS exposure.
Purpose of the Study:
- To develop and validate a brief screening tool for predicting children's ETS exposure.
- To correlate screening question responses with objective hair cotinine measurements.
- To establish a practical method for pediatricians to assess ETS risk.
Main Methods:
- A convenience sample of 291 children (2 weeks to 3 years) provided hair samples and questionnaire data.
- Screening questions focused on home ETS exposure were compared against child hair cotinine levels.
- Statistical analysis identified questions with clinical applicability and significance.
Main Results:
- Three questions were identified as a valid screening tool: "Does the mother smoke?", "Do others smoke?", and "Do others smoke inside?"
- This tool accurately predicts children's risk for ETS exposure.
- Maternal smoking habits outside the home or low daily cigarette consumption did not significantly impact cotinine levels.
Conclusions:
- A simple, specific, and valid screening tool for pediatric offices to identify children at risk of ETS exposure was developed.
- The tool aids in identifying children requiring further intervention for ETS exposure.
- Prospective validation of this screening tool is recommended.
Background:
The American Academy of Pediatrics (Elk Grove Village, Ill) has recommended that pediatricians assess their patients' environmental tobacco smoke (ETS) exposure, but the specific questions most likely to identify children with high ETS exposure are not known. Cotinine is a nicotine metabolite, present in hair, that can be used to quantify months of ETS exposure.
Objective:
To develop a brief screening tool that will accurately predict ETS exposure as defined by child hair cotinine level.
Methods:
We compared the performance of a series of easily administered screening questions regarding home ETS exposure to child hair cotinine levels. Subjects were a convenience sample of healthy children aged 2 weeks to 3 years of both self-reported smokers and nonsmokers.
Results:
Hair samples and questionnaire data were obtained from 291 children. Based on clinical applicability and statistical significance, 3 questions ("Does the mother smoke?", "Do others smoke?", and "Do others smoke inside?") were selected as a valid screening tool to determine children's ETS exposure risk. Maternal report of smoking outside only or smoking few cigarettes per day had no impact on child hair cotinine levels.
Conclusions:
It was possible to derive a simple, specific, and valid screening tool that can be used in pediatric offices to identify children at risk for ETS exposure. Further research is needed to test this tool prospectively.
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