Gastric Cancer Screening in Venezuela
Author Information
Author(s): P. Pisani, W.E. Oliver, D.M. Parkin, N. Alvarez, J. Vivas
Primary Institution: International Agency for Research on Cancer
Hypothesis
Does a screening program for gastric cancer reduce mortality in Tachira, Venezuela?
Conclusion
The screening program in Tachira has failed to reduce mortality from gastric cancer.
Supporting Evidence
- The odds ratio for dying from stomach cancer for those screened was 1.26.
- Only 12.4% of those at risk had been screened.
- Screening did not significantly reduce mortality rates in the population studied.
Takeaway
The study looked at whether screening for stomach cancer helps people live longer, but it found that it didn't really work.
Methodology
A case-control study comparing 241 gastric cancer deaths with 2410 matched controls from electoral rolls.
Potential Biases
High risk of selection bias as those who attended screening may have had symptoms.
Limitations
Selection bias may have affected the results due to the low prevalence of screening.
Participant Demographics
Participants were residents of Tachira State, Venezuela, with cases matched by sex and age.
Statistical Information
P-Value
0.47
Confidence Interval
CI 0.24-0.98
Statistical Significance
p<0.05
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