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WEiGht changes, caRdio-metabolic risks and mortality in patients with hypErThyroidism; all-cohort natural history and comparison of treatment effects in a CPRD-HES linked study. EGRET study

Safe People

Organisation name

University of Birmingham

Organisation sector

Academic Institute

Applicant name(s)

Barbara Torlinska - Chief Investigator - University of BirminghamBarbara Torlinska - Corresponding Applicant - University of BirminghamDaniel Lasserson - Collaborator - University of WarwickG. Neil Thomas - Collaborator - University of BirminghamJonathan Hazlehurst - Collaborator - University of BirminghamJulia Priestley - Collaborator - British Thyroid FoundationKeith Abrams - Collaborator - University of LeicesterKrishnarajah Nirantharakumar - Collaborator - University of BirminghamKristien Boelaert - Collaborator - University of BirminghamPhilip Saunders - Collaborator - NHS BIRMINGHAM AND SOLIHULL CCGSamuel Finnikin - Collaborator - University of Birmingham

Safe Projects

Project ID

CPRD692

Lay summary

An overactive thyroid gland (hyperthyroidism) is common. Leaving the condition untreated can lead to serious health consequences as well as significant weight loss; however, treatment has been linked to additional weight gain, which is associated with increased risk of diabetes and heart disease.

Technical summary

The study aims to establish the natural history of weight changes in hyperthyroidism in any of the three treatment modalities, investigate the risk of obesity in regard to the treatment and compare these risks to the background population, and establish risks of cardio-metabolic conditions and death in each treatment modality. The data on patients diagnosed with hyperthyroidism between 01/01/1996 and 31/12/2015 will come from Clinical Practice Research Datalink (CPRD) linked to Hospital Episode Statistics (HES) and ONS Death Registry.

Latest approval date

08/03/2021

Safe Data

Dataset(s) name

HES Admitted Patient Care

HES Outpatient

ONS Death Registration Data

Patient Level Index of Multiple Deprivation

Safe Setting

Access type

Release