Estimating primary and secondary healthcare resource costs for people with type 1 and type 2 diabetes in the United Kingdom

Date of Approval
Application Number
19_099
Technical Summary

The aim of this study is to characterise the primary and secondary healthcare costs of treating people with diabetes.
Patients in CPRD whose data are eligible for linkage to HES and have a recorded Read or ICD-10 code indicative of diabetes mellitus and/or a prescription for a glucose-lowering therapy and no diagnosis indicative of secondary diabetes will be selected. People will be classified as having type 1 and type 2 diabetes using a previously published algorithm1 based on the diagnostic code recorded, prescribed glucose-lowering therapy, age at onset and body mass index (BMI). NHS resource use (primary care consultations, prescriptions, outpatient appointments and inpatient admissions) and associated costs will be characterised across five years (2015 to 2019), chosen to coincide with the most up-to-date linked secondary care data. The linked Hospital Episode Statistics (HES) inpatient and outpatient data will be used to categorise inpatient admissions and outpatient appointments and to provide the information needed to cost these resources using standard NHS costing methods. Healthcare costs will be stratified by sex and 10-year age band and compared between patients with type 1 and type 2 diabetes and the general population without diabetes. Healthcare resource use and costs will also be compared between patients with type 1 and type 2 diabetes and their matched controls with no diabetes. We predict that costs will not have a normal distribution, in which case a non-parametric Mann-Whitney U test will be used to compare costs between those with diabetes and the general population.

Health Outcomes to be Measured

Healthcare resource use and associated healthcare costs.

Collaborators

- Chief Investigator -
- Corresponding Applicant -
- Collaborator -
Christopher Morgan - Collaborator - Pharmatelligence Limited t/a Human Data Sciences
Craig Currie - Collaborator - Pharmatelligence Limited t/a Human Data Sciences
Sara Jenkins-Jones - Collaborator - Pharmatelligence Limited t/a Human Data Sciences

Linkages

HES Admitted Patient Care;HES Outpatient