Why the study?
Does combining multiple moderately strong, independent risk factors substantially improve overall screening performance?
Population
Theoretical statistical analysis assuming independent risk factors with Gaussian distributions
Comparison
Combining multiple moderately strong… vs Using fewer or individual risk factors
Authors
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Modest detection gains from multi-factor combinations limit screening utility now; leaves open whether stronger predictors can reach clinically useful performance.
Does combining multiple moderately strong, independent risk factors substantially improve overall screening performance?
Combining moderately strong, independent risk factors yields only modest improvements in screening performance, making it impractical to achieve high detection rates with currently known cardiovascular risk factors.
Wald et al. (2005) studied this question.
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