Example sentences for: observational

How can you use “observational” in a sentence? Here are some example sentences to help you improve your vocabulary:

  • In these situations, a clinical investigator may consider a design and analysis based on observational data (Table 1).

  • The literature is dominated by observational studies and nonrandomized clinical trials performed on small selected patient cohorts, thereby making a traditional meta-analysis impossible to complete.

  • However observational studies have a role particularly when investigating secondary questions involving the effect of age to begin screening, interval between screenings, or small changes in the screening modality.

  • Observational studies and randomized trials almost always quantify error due to random sampling and allocation.

  • This result is in contrast to the results of our earlier observational study at Polaroid, which found a significant association of outdoor air supply rates and sick leave [ 15 ] . In the earlier study, we used a larger number of work areas (115) including areas with lower ventilation and higher CO 2 concentrations than were available for this intervention study.


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