Observational Study in Japanese Type 2 Diabetes Patients

To measure changes in Health Related Quality of Life (as measured by the Insulin Therapy Related-Quality of Life: ITR-QOL) in insulin treated type 2 diabetes over a 12 weeks period following a significant change in insulin treatment regimen. Definition of significant change is a) increase or decrease the in number of injections per day, or/and b) change in formulation of insulin (human or analog insulin, basal or bolus, rapid or mix insulin), and/or c) change in administration method (syringe or pen, disposal or re-usable).

Inclusion criteria

• Inpatients or outpatients with type 2 diabetes, aged 20 years or older, on insulin therapy who have planned to change insulin therapy during the registration period of the study
• Patients who have provided written informed consent to participation in the study after receiving explanations about the objective and other details of the study
• Patients who have received the same insulin therapy for 3 months or longer before informed consent. (i.e. receiving the same type of insulin preparation at the same dosing frequency regardless of insulin dose)

Exclusion criteria

• Patients who have planned to discontinue insulin therapy
• Patients incapable of completing the ITR-QOL, DTSQ and patient's questionnaire based on their self-ratings
• Patients with type 1 diabetes
• Patients who have used CSII or have planned to switch to CSII(continuous subcutaneous insulin infusion )
• Patients with poor treatment compliance as determined by their investigators based on the treatment history