Impact of Organised Cervical Cancer Screening in Turin, Italy
Author Information
Author(s): Ronco G, Pilutti S, Patriarca S, Montanari G, Ghiringhello B, Volante R, Giordano L, Zanetti R, Mancini E, Segnan N
Primary Institution: Unit of Cancer Epidemiology, Centre for cancer Epidemiology and Prevention (CPO Piemonte), Torino, Italy
Hypothesis
What is the impact of an organised cervical cancer screening programme on cancer incidence in Turin, Italy?
Conclusion
The introduction of an organised cervical screening programme in Turin significantly reduced cervical cancer incidence among invited women.
Supporting Evidence
- The age-adjusted cervical cancer incidence ratio was 0.81 for invited vs not invited women.
- Among attenders, the incidence density ratio was 0.25 compared to nonattenders.
- 20% of cancers observed would have been avoided if all women were invited.
Takeaway
When women in Turin were invited to get regular cervical cancer tests, fewer of them got cancer compared to those who weren't invited.
Methodology
The study linked a screening registry to a local cancer registry to evaluate cervical cancer incidence among women invited to screening versus those not invited.
Potential Biases
The order of invitations was random, which helps mitigate bias risks.
Limitations
The study may underestimate the impact of screening due to screening-induced diagnostic lead time.
Participant Demographics
Female residents of Turin aged 25–64 years.
Statistical Information
P-Value
0.81
Confidence Interval
95% CI 0.59–1.09
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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