From: Validating self-report of diabetes use by participants in the 45 and up study: a record linkage study
Self-report of diabetes
HbA1c testing status
Total #
yes
no
Diabetes
20,340
3,664
24,004
Non-diabetes
11,514
228,157
239,671
Total
31,854
231,821
263,675
Uncertain*
787
590
1,377