CSII in Type 1 Diabetes: Diet, Quality of Life & Cardiometabolic Risks - A Longitudinal Study

Continuous subcutaneous insulin infusion (CSII) is a therapy for patients with Type-1 diabetes mellitus involving insulin administration via electronic pump. CSII has been shown to reduce HbA1c levels and improve blood sugar control and the continuous, unobtrusive insulin delivery may potentially allow patients increased dietary flexibility and quality of life. However, despite these claims longitudinal investigatory literature is sparse. This study will clarify whether adult CSII patients experience eating behaviour and quality of life alterations over time after commencement of the therapy. This is important as changes may be associated with cardiometabolic risk variations; which will also be investigated.

Participants will comprise of a convenience sample of adults with Type-1 diabetes invited from diabetes clinics at the Royal Liverpool University Hospital who are due to commence CSII.

Following ethical consent the participants who are due to commence CSII will be observed at 5 time points (every three months) over a year. It should be noted that the recruitment period for the longitudinal arm of the study will be 9 months starting from the date the first participant is recruited. At each time point each participant will be asked to complete a 5 day food diary, a food intake questionnaire (FIQ), a quality of life (QOL) questionnaire, a semi-structured interview and give a 20ml sample of blood. This will be taken at the same time and in addition to their regular diagnostic sample, however where this is unfeasible extra occasional appointments may be needed. Results will be compared with existing patient medical records, which will also be analysed during the study.