Table 4: Total impact on the budget of North West London clinical commissioning groups (£).

	Year 1	Year 2	Year 3	Year 4
SMBG strip and lancet savings	10,66,314	1,092,972	1,120,296	1,148,304
Savings due to reduced severe hypoglycaemia	6,620,735	6,786,253	6,955,910	7,129,807
Savings from avoided pump usage*	238,586	244,551	250,665	256,931
Savings from avoided or postponed HbA1c related complications†	191,276	196,058	200,960	205,984
Total savings	8,116,912	8,319,835	8,527,830	8,741,026
Net budget impact on NW London CCGs	2,653,760	2,463,361	3,402,143	2,588,068

*Savings from avoided pump usage = % reduction in pump usage every year multiplied by the total cost to NHS every year for new pump starts; †Savings from avoided or postponed HbA1c related complications = Savings from avoided or postponed HbA1c related complications per person (£63) multiplied by the number of T1D-IAH patients (target population). CCGs = clinical commissioning groups; HbA1c = glycated haemoglobin; NHS = National Health Service; NW = North West; SMBG = self-monitoring of blood glucose; T1D-IAH = type 1 diabetes with impaired awareness of hypoglycaemia.