The Public Health Payoff of 'No Smoking Allowed': Quantifying Decreases in SHS Exposure
Author Information
Author(s): Angela Spivey
Primary Institution: CDC’s National Center for Health Statistics
Hypothesis
Has secondhand smoke exposure decreased over the past 14 years?
Conclusion
Secondhand smoke exposure has decreased by an average of 70% in people over the age of 4, but further efforts are needed to protect at-risk groups.
Supporting Evidence
- Over the last 14 years, SHS exposure has decreased substantially by an average of 70%.
- Children aged 4 to 11 had a median exposure level of 0.067 ng/mL, almost twice that of adults.
- Blacks had a median exposure level of 0.135 ng/mL, higher than the 0.034 ng/mL for whites.
Takeaway
This study shows that fewer people are breathing in secondhand smoke now than before, but we still need to help kids and black communities who are more affected.
Methodology
Data was analyzed from the National Health and Nutrition Examination Survey (NHANES) conducted by the CDC, measuring serum cotinine levels in participants.
Potential Biases
Potential bias in serum cotinine levels due to metabolic differences among racial groups.
Limitations
The study may not fully account for differences in metabolism affecting serum cotinine levels among different demographics.
Participant Demographics
Nonsmoking participants aged 4 and older, with a focus on children and black individuals.
Want to read the original?
Access the complete publication on the publisher's website