SurgiCal Obesity Treatment Study (SCOTS): protocol for a national prospective cohort study of patients undergoing bariatric surgery in Scotland

Jennifer Logue, Sally Stewart, Jane Munro, Julie Bruce, Eleanor Grieve, Mike Lean, Robert S. Lindsay, Duff Bruce, Abdulmajid Ali, Andrew Briggs, Naveed Sattar, Ian Ford

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Abstract

Introduction

The efficacy of bariatric surgery for large-scale, long-term weight loss is well established. However, many questions remain over the continual benefits and cost-effectiveness of that weight loss for overall health, particularly when accounting for potential complications and adverse events of surgery. Health research institutes in the UK and the USA have called for high-quality longitudinal cohort studies of patients undergoing bariatric surgery, assessing outcomes such as surgical complications, mortality, diabetes remission, microvascular complications, cardiovascular events, mental health, cost and healthcare use.

Methods and analysis

SurgiCal Obesity Treatment Study (SCOTS) is a national, prospective, observational, cohort study of patients undergoing primary bariatric surgical procedures in Scotland. This study aims to recruit 2000 patients and conduct a follow-up for 10 years postbariatric surgery using multiple data collection methods: surgeon-recorded data, electronic health record linkage, and patient-reported outcome measures. Outcomes measured will include: mortality, weight change, diabetes, surgical, cardiovascular, cancer, behavioural, reproductive/urological and nutritional variables. Healthcare utilisation and economic productivity will be collected to inform cost-effectiveness analysis.

Ethics and dissemination

The study has received a favourable ethical opinion from the West of Scotland Research Ethics committee. All publications arising from this cohort study will be published in open-access peer-reviewed journals. All SCOTS investigators (all members of the research team at every recruiting site) will have the ability to propose research suggestions and potential publications using SCOTS data; a publications committee will approve all requests for use of SCOTS data and propose writing committees and timelines. Lay-person summaries of all research findings will be published simultaneously on the SCOTS website (http://www.scotsurgeystudy.org.uk).
Original languageEnglish
JournalBMJ Open
Volume5
Issue number5
DOIs
Publication statusPublished - 22 May 2015
Externally publishedYes

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Logue, J., Stewart, S., Munro, J., Bruce, J., Grieve, E., Lean, M., Lindsay, R. S., Bruce, D., Ali, A., Briggs, A., Sattar, N., & Ford, I. (2015). SurgiCal Obesity Treatment Study (SCOTS): protocol for a national prospective cohort study of patients undergoing bariatric surgery in Scotland. BMJ Open, 5(5). https://doi.org/10.1136/bmjopen-2015-008106