Table 4.

Diabetes incidence and risk reduction over 10 years and 50 years

Method of identifying participants	No intervention		Low intensity lifestyle programme				High intensity lifestyle programme				Metformin
	Incidence T2DM		Incidence T2DM		Relative risk reduction		Incidence T2DM		Relative risk reduction		Incidence T2DM		Relative risk reduction
	After 10 years	After 50 years	After 10 years	After 50 years	At 10 years	At 50 years	After 10 years	After 50 years	At 10 years	At 50 years	After 10 years	After 50 years	At 10 years	At 50 years
IGT	23%	42%	22%	41%	7%	3%	14%	33%	39%	21%	20%	38%	16%	9%
IFG	19%	38%	18%	37%	7%	3%	13%	31%	35%	17%	16%	35%	16%	9%
HbA1c	19%	38%	18%	37%	7%	3%	13%	31%	35%	17%	13%	33%	35%	14%