Table:
Type 2 diabetes
Other names	Diabetes mellitus type 2;
adult-onset diabetes;[1]
noninsulin-dependent diabetes mellitus (NIDDM)

Universal blue circle symbol for diabetes[2]
Pronunciation

/daɪəbiːtəs/

Specialty	Endocrinology
Symptoms	Increased thirst, frequent urination, unexplained weight loss, increased hunger[3]
Complications	Hyperosmolar hyperglycemic state, diabetic ketoacidosis, heart disease, strokes, diabetic retinopathy, kidney failure, amputations[1][4][5]
Usual onset	Middle or older age[6]
Duration	Long term[6]
Causes	Obesity, lack of exercise, genetics[1][6]
Diagnostic method	Blood test[3]
Prevention	Maintaining normal weight, exercising, eating properly[1]
Treatment	Dietary changes, metformin, insulin, bariatric surgery[1][7][8][9]
Prognosis	10 year shorter life expectancy[10]
Frequency	392 million (2015)[11]

Look at the table in the image and show any merged cells, specifying their locations with the JSON format of {'top-left':(X, Y), 'bottom-right':(Z, W)}, where X, Y, Z and W are indices (starting from 1) of the first row, the first column, the last row and the last column, respectively.

The merged cell area is: {'top-left':(1, 1), 'bottom-right':(1, 2)}.