Diabetes mellitus   Cardiovascular diseases   Type 2 diabetes mellitus   Hypoglycemic agents   Diabetes mellitus drug therapy   Cardiovascular diseases prevention & control   Hypoglycemic agents therapeutic use   Human   Risk factors   Cause of death   Blood glucose   Cardiovascular diseases mortality   Hypoglycemia   Diabetes mellitus blood   Blood glucose metabolism   Hypoglycemic agents adverse effects   Hypoglycemia chemically induced