HbA1c measurement and relationship to incident stroke

Robson, R., Lacey, A. S., Luzio, S. D., Van Woerden, Hugo, Heaven, M. L., Wani, M., Halcox, J. P. J., Castilla-Guerra, L., Dawson, J. and Hewitt, Jonathan ORCID: https://orcid.org/0000-0002-7924-1792 2016. HbA1c measurement and relationship to incident stroke. Diabetic Medicine 33 (4) , pp. 459-462. 10.1111/dme.13057

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Abstract

Aims To determine the proportion of people with diabetes who have HbA1c measured, what proportion achieve an HbA1c level of < 58 mmol/mol (7.5%), the frequency of testing and if there was any change in HbA1c level in the year before and the year after an incident stroke. Methods This study used the Secure Anonymised Information Linkage (SAIL) databank, which stores hospital data for the whole of Wales and ~ 65% of Welsh general practice records, to identify cases of stroke in patients with diabetes between 2000 and 2010. These were matched against patients with diabetes but without stroke disease. We assessed the frequency of HbA1c testing and change in HbA1c in the first year after stroke. Estimation was made of the proportion of patients achieving an HbA1c measurement ≤ 58 mmol/mol (7.5%). Results There were 1741 patients with diabetes and stroke. Of these, 1173 (67.4%) had their HbA1c checked before their stroke and 1137 (65.3%) after their stroke. In the control group of 16 838 patients with diabetes but no stroke, 8413 (49.9%) and 9288 (55.1%) had their HbA1c checked before and after the case-matched stroke date, respectively. In patients with diabetes and stroke, HbA1c fell from 61–56 mmol/mol (7.7–7.3%) after their stroke (P < 0.001). Before the study, 55.0% of patients with stroke had an HbA1c ≥ 58 mmol/mol compared with 65.2% of control patients, these figures were 62.5% and 65.3% after the stroke. Conclusions The frequency of diabetes testing was higher in patients who had experienced a stroke before and after their incident stroke compared with control patients but did not increase after their stroke. Glucose control improved significantly in the year after a stroke.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Subjects:	R Medicine > R Medicine (General)
Publisher:	Wiley
ISSN:	0742-3071
Date of First Compliant Deposit:	21 April 2016
Date of Acceptance:	15 December 2015
Last Modified:	06 Jul 2023 17:18
URI:	https://orca.cardiff.ac.uk/id/eprint/89509

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