When such figures are compared to a 20% intention-to-screen-based mortality reduction reported by FOBT screening trials, the hypothesis of FOBT screening being effective only through colonoscopies recommended for spurious FOBT positivity is hardly acceptable.
We chose the ChemBank repository of chemical screens to test the hypothesis of whether a pair of biological activities (i.e. biological processes or molecular activities) modulated by the same chemicals is related.
Bayesian posterior probabilities for alternative phylogenetic hypotheses were estimated by screening the post-burn-in trees sampled by MrBayes using topological constraint filters in PAUP*.
The objective of this study is to test the hypothesis that screening for breast cancer with ultrasound, in a cohort of women at moderately increased risk of breast cancer, does not lead to an unacceptably high biopsy rate.
If one is willing to assume that the mother's age of death is exogenous to the individual mammography screening decision, the hypothesis that all other instruments are valid cannot be rejected.
It may be useful to assess the phylogenetic signal in the data, and to screen out the hypotheses which are likely to be rejected by more powerful tests or when few alternatives are available (as in the DNA-DNA hybridization example).
The trial was designed to test the hypothesis that routine screening with standardized ultrasonography on 2 occasions would reduce perinatal morbidity and mortality.
In this regard, the main aim of the DIAD study was to test the hypothesis that systematic screening with stress myocardial perfusion imaging would identify higher-risk individuals and beneficially affect their risk of myocardial infarction or cardiac death.
Recently, two large prospective randomized trials designed to test the hypothesis that PSA-based screening would reduce mortality were published.
The National Lung Cancer Screening Trial has been undertaken by the National Institutes of Health to test the hypothesis that CT-scan screening reduces mortality by increased detection of Stage I and II lung cancers.
