Sentence examples for Lack of ascertainment from inspiring English sources

WGS provides the best possible resource for LD mapping due to the maximal marker density and lack of ascertainment bias.

Limitations include under-reporting of injury events for reasons other than incomplete recall, different methodologies for intent ascertainment between fatal and non-fatal injury in the data sources used, lack of ascertainment of injury risk differentials among survey non-respondents and the use of 2002 general population survey data to compare with 2007 2008 traveller survey data.

Doubt should not be understood here in the sense of "hesitation," but as the lack of decisive ascertainment.

Given the lack of complete ascertainment of causal links, one cannot exclude the possibility of collider bias and therefore biased associations between exposures and outcomes [ 37].

All of the six case-control studies scored between 5 and 7, the commonest weaknesses being lack of blind ascertainment of exposure in all six studies, failure to demonstrate that lung cancer cases had been excluded from the controls in four studies, use of hospital controls in three studies, and differing response rates (or lack of information on response rates) in three studies.

The bias arises from two sources, the series design and the lack of complete disease status ascertainment.

Conversely, other data sources, such as chart reviews, might not uncover all diagnostic errors due to lack of documented information (ie, ascertainment bias).

Causal inferences are difficult because of possible biases from incomplete case ascertainment, lack of data on individual-level exposures, and other socioeconomic and lifestyle factors that may confound a relationship with area of residence.

One-third of studies had important methodological limitations including differential or incomplete HAI ascertainment or lack of blinding of assessors.

This review highlights the lack of consistency in MCI case ascertainment in currently completed RCTs.

The quality of much research was criticized, pointing out a lack of proper controls, poor patient ascertainment and selection practices, small sample size, and a lack of a priori endpoints.