Article Text



Statistics from

Smith S, Waterall J, Burden ACF. An evaluation of the performance of the NHS Health Check programme in identifying people at high risk of developing type 2 diabetes. BMJ Open 2013;3:e002219. doi:10.1136/bmjopen-2012-002219

There is an error in table 3 of this paper. The error occurred because in calculating specificity in the analysis, the author used DBP cut off of 80 mm Hg instead of 90 mm Hg.

The specificity calculation should therefore be:


All other data analyses and the rest of the data presented are correct.

In addition, there are further corrections as follows:

Abstract (page 1)


Specificity was 50.1% (95% CI 49.6% to 51.5%)

Results (page 4) Column 2

The NHS Health Check has a specificity of approximately 50% meaning that in the Heart of Birmingham population, 50% of people that were not at risk for diabetes would have been identified by the filter as requiring a blood glucose test.

Discussion (page 6) Column 2

Conversely, half of those that were identified by the filter as being at high risk had HbA1c <42 mmol/mol.

View Abstract

Request permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

Linked Articles