Comparing Methods for Analyzing Genetic Factors in High Blood Pressure
Author Information
Author(s): Kopciuk Karen A, Briollais Laurent, Demenais Florence, Bull Shelley B
Primary Institution: Samuel Lunenfeld Research Institute of Mount Sinai Hospital
Hypothesis
How does interval censoring affect segregation and linkage analysis methods in genetic studies of hypertension?
Conclusion
Interval censoring for age-at-onset should not be ignored, and different methods can yield inconsistent results.
Supporting Evidence
- Interval censoring can lead to inaccurate conclusions in standard survival analyses.
- Different age-at-onset definitions affect parameter estimates in segregation analyses.
- Linkage analyses did not replicate significant findings from previous studies.
Takeaway
This study looks at how to better understand high blood pressure by tracking when it starts in people over time, which helps scientists find the genes that might cause it.
Methodology
Genetic analyses were conducted using data from the Framingham Heart Study, focusing on age-at-onset for systolic blood pressure exceeding 139 mm Hg.
Limitations
The study's findings may not be generalizable due to the specific population studied and the methods used.
Participant Demographics
Participants were from the Framingham Heart Study, including individuals from 330 families.
Digital Object Identifier (DOI)
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