Combining Evidence from Genetic Studies
Author Information
Author(s): Putter Hein, Houwing-Duistermaat Jeanine J, Nagelkerke Nico JD
Primary Institution: Leiden University Medical Center
Hypothesis
Can evidence from case-control and transmission disequilibrium test designs be effectively combined in genetic association analysis?
Conclusion
Combining evidence from case-control and TDT studies resulted in a 5–10% reduction in the standard errors of effect estimates.
Supporting Evidence
- The study combined data from case-control and TDT designs to improve genetic association analysis.
- Standard errors of effect estimates were reduced by 5 to 10% when combining the two methods.
- The TDT design provided smaller standard errors compared to the case-control design.
Takeaway
The study shows a way to combine two methods for finding genetic links to diseases, which helps make the results more accurate.
Methodology
Logistic regression and generalized estimating equations were used to analyze SNP data from case-control and TDT designs.
Potential Biases
Potential biases from population stratification in case-control studies.
Limitations
The assumptions underlying the case-control part of the study need to be verified before combining with TDT results.
Participant Demographics
100 nuclear families with affected offspring, primarily from the Aipotu population.
Statistical Information
P-Value
4.20 × 10-11
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website