Key result
For a risk factor to serve as a useful screening test, it must demonstrate a strong association with the disorder, quantified by relative risk or detection rate.
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Weakly associated risk factors should not guide screening; challenges assumptions on their utility and leaves stronger predictor validation open.
Wald et al. (1999) studied this question. For a risk factor to serve as a useful screening test, it must demonstrate a strong association with the disorder, quantified by relative risk or detection rate.
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