Table 2

Crude prevalence of pre-diabetes and undiagnosed diabetes and crude yield of HbA1c in the UK Biobank by ethnic group

White
n=419 512
South Asian
n=7400
Black
n=5578
Chinese
n=1366
Overall
n=433 856
Cases, n
Prevalence (95% CI)
Cases, n
Prevalence (95% CI)
Cases, n
Prevalence
(95% CI)
Cases, n
Prevalence (95% CI)
Cases, n
Prevalence (95% CI)
Pre-diabetes13 844
3.3 (3.3 to 3.4)
815
11.0 (10.3 to 11.8)
770
13.8 (12.9 to 14.7)
106
7.8 (6.5 to 9.3)
15 535
3.6 (3.5 to 3.6)
Undiagnosed diabetes2901
0.7 (0.7 to 0.7)
263
3.6 (3.2 to 4.0)
167
3.0 (2.6 to 3.5)
15
1.1 (0.7 to 1.8)
3346
0.8 (0.8 to 0.8)
Pre-diabetes or undiagnosed diabetes16 745
4.0 (3.9 to 4.1)
1078
14.6 (13.5 to 15.8)
937
16.8 (15.5 to 18.2)
121
8.9 (7.1 to 11.1)
18 881
4.4 (4.3 to 4.4)
YieldYieldYieldYieldYield
Pre-diabetes1 in 301 in 91 in 71 in 131 in 28
Undiagnosed diabetes1 in 1431 in 281 in 331 in 911 in 130
Pre-diabetes or undiagnosed diabetes1 in 251 in 71 in 61 in 111 in 23
  • Yield refers to the average number needing to be tested to identify one case.

  • HbA1c, glycated hemoglobin; n, number.