The purpose of this study is to assess the burden of hypoglycemia and identify unmet need related to the management of hypoglycemia among Type 2Diabetes Mellitus (T2DM) patients on OADs and/or insulin. This is an observational study which will identify patients with T2DM in an administrative claims database and will link claims data with results of patient and physician surveys concerning hypoglycemia.

Inclusion Criteria:

• T2DM claims diagnosis (algorithm-based) with at least 2 pharmacy claims for an antidiabetic drug
• at least 1 HbA1c test recorded during the identification period
• continuous enrollment in the health plan for at least 12 months prior to survey date

Exclusion Criteria:

• Type 1 Diabetes Mellitus
• pregnancy or gestational diabetes

Patients with T2DM will be identified from a large U.S. administrative claims database using a claims-based algorithm for T2DM. Patients and their associated physicians will be recruited via mail into the survey portion of this study. Survey results will be linked to actual patient care using the claims records.