However, extended PBx, a common diagnostic procedure, has a limited predictive ability for lobes without significant cancer.
Furthermore, in the Alternans Before Cardioverter Defibrillator (ABCD) trial, TWA showed limited predictive ability for lethal ventricular tachyarrhythmia.
First, the complexity of genetic information together with the limited predictive ability of the tests themselves, render personal genome testing susceptible to misunderstanding and misinterpretation.
Very rare variants, by definition, occur in only few individuals that ultimately develop the disease and therefore have poor sensitivity and a limited predictive ability.
The limited predictive ability for future falls may be attributed to the fact that the cause of falling in older people is multifactorial [ 2].
Furthermore, the limited predictive ability of the HAPA model suggests that further research targeting alternative mechanisms is needed before judgment can be made about whether brief interventions can be effective.
The limited value of these peaks as diagnostic biomarkers was confirmed by ROC curve analysis, in which each peak was found to have only limited predictive ability with AUC≈60%.
A recent systematic review examined the predictive value of the rule in elderly inpatients at risk of falls and found that at a score ≥2 points, the STRATIFY rule had only limited predictive ability with moderate summary estimates of sensitivity (0.67, 95% CI 0.52 – 0.80) and specificity (0.57, 95% CI 0.45 – 0.69) [ 6].
However, the limited predictive ability suggest that either other biological factors not include in the model or, more probably, the stochasticity of T-cell activation due to random infections might account for a significant proportion of the temporal distribution of relapses.
However, ROC curve analysis showed that TUG had limited predictive ability for future falls.
The tool is easy to apply in an urgent-care setting and does identify risk of adverse outcome but has limited predictive ability.
