Sentence examples for be ascertained over from inspiring English sources

Mortality, an important outcome in epidemiological studies, generally has to be ascertained over long follow-up periods.

As far as can be ascertained, over 80% of the worldwide epidemiological data that have been assembled on the relationship between breast cancer and alcohol and tobacco consumption were contributed to this collaboration.

CVD events were ascertained over a median of 15 years.

Incident coronary heart disease and stroke events were ascertained over 9 years.

Data on patient demographics, clinical, and treatment characteristics (Charlson Comorbidity Index 27) were ascertained over the 12-month preindex period.

Cell death no longer occurred after that period and phenotype stability was ascertained over several cell passages in the absence of lovastatin [ 11].

In population-based case-control studies, incident or prevalent cases in the studied population are ascertained over a certain time period, while the controls are randomly selected from the same source population.

Traditionally, the effect of a drug would be ascertained in cultures adapted over multiple generations to their growth environments.

Secondary health care use will be ascertained by exploring health care records over the preceding 10 years and prospectively over the next 12 months in all local secondary care services and nationally from Hospital Episode Statistics collected by the Department of Health for England.

We also believe that the benefits of surgical treatment of metastatic lesions need to be ascertained by following up the patient over time.

Using this threshold value, the state of the rDNA clusters for a segment could be ascertained for 65% of the nodes over all segments i.e., a cluster was absent (or present) in 42% (or 23%) of the nodes.