Table 1.

Demographic data for the cohort at entry to study. Standardised prevalences shown are directly standardised by age to the combined populations of England and Wales, 1994-8

Age band (years) and sex	Full cohort		Type 1 diabetes		Type 2 diabetes
	No	Prevalence (%)	No	Prevalence (%)	No	Prevalence (%)
0 to 19:
Female	65	0.16	62	0.16	3	0.01
Male	68	0.16	65	0.16	3	0.01
20 to 39:
Female	244	0.58	168	0.40	76	0.18
Male	292	0.69	221	0.52	71	0.17
40 to 59:
Female	560	1.63	96	0.28	464	1.35
Male	866	2.55	117	0.34	749	2.21
60 to 79:
Female	1046	4.04	9	0.03	1037	4.01
Male	1320	6.14	23	0.11	1297	6.03
80 and over:
Female	250	3.94	0	0	250	3.94
Male	131	5.16	0	0	131	5.16
All ages:
Female	2165	1.46	335	0.23	1830	1.24
Male	2677	1.89	426	0.30	2251	1.59
Prevalence standardised by age (%)
Female		1.53		0.23		1.31
Male		1.96		0.30		1.65
Combined		1.74		0.26		1.48