Heritable and accurately measured phenotypes, carefully matched large samples, well-chosen genetic markers, and adequate standards in genotyping, analysis, and interpretation are all integral parts of a high-quality association study.
It utilizes a series of high quality class association rules (CARs) mined from the training dataset upon predefined minimum support and confidence constraints to build highly accurate classifiers [11].
A nested case control study and longitudinal cohort study, both of high quality, found no association between anxiety and knee pain.
In the analysis of high quality studies, the association between TNF-α and MDD weakened and changed to being statistically non-significant (N = 18, d = 0.28, p = 0.09, 95%CI = −0.04 0.59 total N MDD) = 805, total N non-MDD) = 872) (Table 1).
The methods which can achieve the highest accuracy but which provide a relatively small number of hits (STRING-fusion and Truong-fusion) are useful for identifying high quality sets of associations.
Therefore we propose the need for high quality research into an association between the experience of stress in a variety of contexts and miscarriage risk.
Four primary studies of high quality confirm the positive association.
The high quality study found no association between non-organic signs and disability [ 37].
The three high quality studies found no association between SLR and outcome [ 35, 65, 70].
There is conflicting evidence for non-organic signs being predictive of short-term outcome, however, the high quality study showed no association.
The high quality study found no association between pain on palpation and the outcomes of pain and disability at one year in a subacute primary care population [ 54].
