Publications by authors named "John W Welsh"

Purpose: To compare outcomes, activity scores, and complication rates of obese and non-obese patients undergoing medial patellofemoral ligament (MPFL) reconstruction.

Methods: A retrospective review identified patients undergoing MPFL reconstruction for recurrent patellofemoral instability. Patients were included if they had undergone MPFL reconstruction and had follow-up for a minimum of 6 months.

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Background: Noninferiority trials are increasingly being performed. However, little is known about their methodological quality. We sought to characterize noninferiority cardiovascular trials published in the highest-impact journals, features that may bias results toward noninferiority, features related to reporting of noninferiority trials, and the time trends.

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Importance: Publicly available data sets hold much potential, but their unique design may require specific analytic approaches.

Objective: To determine adherence to appropriate research practices for a frequently used large public database, the National Inpatient Sample (NIS) of the Agency for Healthcare Research and Quality (AHRQ).

Design, Setting, And Participants: In this observational study of the 1082 studies published using the NIS from January 2015 through December 2016, a representative sample of 120 studies was systematically evaluated for adherence to practices required by AHRQ for the design and conduct of research using the NIS.

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