Fig. 1.

Sample selection. *Reasons for ineligibility: age or geography (n = 50) (e.g., under 18, did not reside in UK or US); diagnosis (n = 833) (e.g., diagnosed with type 1 diabetes, diagnosis of T2D less than 6 months prior to the survey); medication (n = 2905) (e.g., not currently using injectable medication for T2D); and other less common reasons (n = 31) (e.g., unwilling to provide informed consent, conflict of interest due to employment at a pharmaceutical company)