Our systematic review demonstrated differing methodologies for CT quantification and contrasting correlations with airflow obstruction in COPD patients.
First, a meta-analysis pools studies and cannot account for differing methodologies and sampling strategies (31).
Differing methodologies may be responsible, for example, PCR-based techniques alone may introduce artefacts (due to errors introduced by the polymerase enzyme) if they are not confirmed by a second independent experiment.
The reasons responsible for the discrepancies among the results may be due to differing methodologies.
How, for example, should banks' differing methodologies be compared?
Dewey has defended its reporting and said the discrepancies resulted from differing methodologies.
Previously, arguments have been made for both endothermic and ectothermic metabolisms based on differing methodologies.
It is possible that the discrepancies between the different reports are due to the differing methodologies used for the detection of EBV, the histological types of tumours examined, and the ethnic/geographical background of the cases studied.
Fifth, some of the variation in effects found across test content may be due to the differing methodologies employed in PISA and TIMSS for calculating variance rather than an observed effect in the population.
Three national databases collect information on the prevalence of concussions, for example, but their differing methodologies make it difficult to come up with a nationwide figure.
At higher frequencies the AFs obtained from the different input FAS start to differ, especially for the DMF methodology that consistently over-predict the AFs at frequencies larger than ~ 5 Hz.
