Sentence examples for used a retrospective study from inspiring English sources

The present study used a retrospective study design.

Methods: We used a retrospective study design employing claims data from 1997 and 1998 from a private insurer and a state Medicaid program to analyze costs incurred.

We used a retrospective study design to examine time and location patterns in infant mortality between 1950 and 1996, using univariate statistics, graphical techniques, and Poisson regression analysis.

Moreover, all the analyzed studies were methodologically rigorous, in most cases using a retrospective study design.

Using a retrospective study design, data from all established cases during the period 2004 2007 were collected.

Using a retrospective study design, we defined the surgical decompression rate in patients admitted to the hospital with severe infection and ureteral calculi.

To carry out a pilot study to demonstrate the feasibility of the contingent valuation (CV) approach to identify net benefits gained from spinal interventions; and to conduct a formal cost-benefit analysis (CBA) using a retrospective study design.

Patients and Methods: Using a retrospective study design in a randomized protocol, patients who had undergone Le Fort I osteotomy were assigned to either treatment group 1 (DPNB ligated) or treatment group 2 (DPNB preserved).

Using a retrospective study design confers some disadvantages.

Therefore, we decided to use a retrospective study design to address the hypothesis that HP may have greater seasonal serum KL-6 variation than the other ILD.

Using a retrospective study design, we evaluated the impact of balloon inflations during PPCI on enzymatic infarct size (IS) and long-term outcomes.