Sentence examples for attrition over time from inspiring English sources

Panel studies provide an opportunity to study a rich set of correlates of panel attrition over time.

Using GLIMMIX based on these linearization methods, we derived formulas for power and sample size calculations for longitudinal designs with attrition over time.

We find relatively little overall change in the pre-post election panel attrition rates, but important changes in demographic correlates of panel attrition over time.

Most working age individuals file tax returns every year, so attrition over time is quite low relative to longitudinal survey data.

Moreover, longitudinal surveys are affected by sample attrition over time, though samples are usually refreshed as time goes on and remaining samples can possibly be calibrated in order to reduce potential selectivity bias.

Attrition over time leads to a decrease in the clinical crown heights of patient's teeth and can mask the presence of gingival recession if clinical crown height is used as a measure.

Furthermore, yearly rates of attrition have decreased over time as our methods for tracking subjects have become more sophisticated.

Finally, attrition occurred over time, which had the potential to affect the study results.

Expecting an approximately 20%% attrition rate over time, we are oversampling (180 patients per condition) to ensure that we have sufficient power to be able to assess our primary endpoint at the completion of the study period.

These changes (increased attrition) may occur over time within the same country or as differences between the attrition rates of two similar countries and their populations of professionals.

Attrition of telomeres over time is a characteristic feature of aging and serves as one of the major markers for premature aging [11].