Publications by authors named "R R Williams"

Objective: In October 2018, the Government of Canada legalized cannabis for recreational use nationwide. The effects of legalization on cannabis use have been primarily assessed through cross-sectional surveys.

Method: In the present study, a two-wave longitudinal design was used to explore potential demographic, substance use and behavioral addiction, and mental health predictors of change in cannabis use status following legalization.

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Background: Supportive policy is an important component of a whole-systems approach to increasing physical activity and reducing inequalities. There is a growing body of literature surrounding the design and effectiveness of national policy approaches to physical activity, but evidence related to local-level approaches is lacking. The aim of this study was to examine 'what works', and identify factors underpinning change, focused on work to embed physical activity in local policy and practice in Bradford, UK.

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Background: Mental illness is among the most common health conditions in the U.S., yet clients needing mental health services such as psychotherapy may not be able to receive these services because of mental health providers such as psychiatric/mental health nurse practitioners (PMHNPs).

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Background: Failure of primary cartilage restoration procedures of the knee that proceed to necessitating revision cartilage procedures represent a challenging clinical scenario with variable outcomes reported in previous literature.

Purpose: To perform a systematic review and meta-analysis of clinical outcomes and adverse events after revision cartilage restoration procedures of the knee for failed primary cartilage procedures.

Study Design: Systematic review and meta-analysis; Level of evidence, 4.

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Background: The use of angioembolization as a first approach for treating severe, blunt splenic injuries has increased recently, yet evidence showing its superiority to immediate splenectomy is lacking. We compared the prognosis of angioembolization versus splenectomy in patients presenting hemodynamically unstable with high-grade, image-confirmed, blunt splenic injuries in a nationally representative dataset.

Methods: We queried the 2017-2022 Trauma Quality Improvement Program database for adults with blunt splenic injury abbreviated injury scale = 4-5, with arrival systolic blood pressure <90 mm Hg, and treated with either angioembolization or splenectomy <6 hours of arrival after a computed tomography scan.

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