A 52-year-old woman had been found to have type 2 diabetes mellitus approximately 6 months previously.
Investigations:
haemoglobin A1c50 mmol/mol (20C42)
What is the lifetime risk of her identical twin sister also developing type 2 diabetes mellitus?
A . <5%
B . 5C10%
C . 20C30%
D . 40C50%
E . >60%
Answer: E