Cigarette Smoking and Cervical Cancer Risk
Author Information
Author(s): E.R. Greenberg, M. Vessey, K. McPherson, D. Yeates
Primary Institution: Department of Community Medicine & General Practice, Gibson Laboratories Building, Radcliffe Infirmary, Oxford, UK
Hypothesis
Is there a causal relationship between cigarette smoking and cervical neoplasia?
Conclusion
Heavy smokers have a two-fold or greater increase in risk of cervical neoplasia.
Supporting Evidence
- 195 women were diagnosed with cervical neoplasia during the follow-up period.
- Smokers had higher incidence rates of cervical neoplasia compared to non-smokers.
- The incidence of neoplasia was more than twice as high in heavy smokers as in non-smokers.
- Adjustment for confounding factors still showed a significant trend of higher incidence with increased smoking.
- Former smokers had a higher risk of cervical neoplasia compared to never smokers.
Takeaway
Women who smoke cigarettes are more likely to get cervical cancer, especially if they smoke a lot.
Methodology
The study analyzed incidence rates of cervical neoplasia among women categorized by their smoking status over a follow-up period.
Potential Biases
There may be unmeasured variables that could influence the association between smoking and cervical neoplasia.
Limitations
The study did not have data on the sexual history of women, which could confound the results.
Participant Demographics
17032 white married women, aged 25-39, recruited from family planning clinics in England and Scotland.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
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