Table 1.

Percentage reduction in the prevalence of biochemically confirmed diabetes due to interventions

Age group at baseline (in 1983)		Year
		1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
Pharmaceutical intervention using metformin
Male	25-29	0	0	0	0	0	0	0	0	0	0.42	0.41
	30-34	0	0	0	0	0	0	0	0.43	0.63	0.83	0.96
	35-39	0	0.24	0.23	0.23	0.30	0.45	0.44	0.86	1.41	1.36	1.65
	40-44	0.64	0.94	1.24	1.53	1.45	1.65	1.85	2.15	2.43	2.07	2.13
Female	25-29	0	0	0	0	0	0	0	0	0	0.28	0.27
	30-34	0	0	0	0	0	0	0	0	0	0.41	0.40
	35-39	0.35	0.34	0.66	1.29	1.14	1.12	1.32	1.29	1.46	1.40	1.53
	40-44	0.49	0.48	1.18	1.63	1.20	1.34	1.48	1.62	2.07	1.69	1.90
Lifestyle intervention
Male	25-29	0	0	0	0	0	0	0	0	0	0.62	0.61
	30-34	0	0	0	0	0	0	0.22	0.64	0.85	0.97	1.09
	35-39	0.24	0.48	0.47	0.46	0.45	0.60	0.73	1.01	1.84	1.67	1.75
	40-44	0.64	1.10	1.24	1.53	1.45	1.65	2.06	2.15	2.86	2.40	2.46
Female	25-29	0	0	0	0	0	0	0	0	0	0.28	0.27
	30-34	0	0	0	0	0	0	0	0	0	0.41	0.40
	35-39	0.35	0.68	0.99	1.62	1.37	1.35	1.54	1.50	1.67	1.71	1.84
	40-44	0.49	0.48	1.18	1.63	1.37	1.51	1.81	1.94	2.38	1.94	2.02