Self-knowledge of HbA1c in people with Type 2 Diabetes Mellitus and its association with glycaemic control. Issue 5 (October 2017)

• Record Type: Journal Article
• Authors: Trivedi, Hina; Gray, Laura J.; Seidu, Samuel; Davies, Melanie J; Charpentier, Guillaume; Lindblad, Ulf; Kellner, Christiane; Nolan, John; Pazderska, Agnieszka; Rutten, Guy; Trento, Marina; Khunti, Kamlesh
• Is Part Of: Primary care diabetes. Volume 11:Issue 5(2017)
• Page Start: 414
• Page End: 420
• Publication Date: 2017-10
• Subjects: HbA1c -- Self-care behaviour -- Glycaemic control -- Self-management -- Education; Diabetes -- Periodicals; 616.462
• DOI: 10.1016/j.pcd.2017.03.011
• Languages: English
• ISSNs: 1751-9918

Abstract

Highlights: First and largest multinational study assessing the prevalence of self-knowledge of their own HbA1c (HbA1c SK )*. Study assessing the relationship between knowing one's own HbA1c and one's actual recorded HbA1c value. Accurate HbA1c SK is associated with better glycaemic control. Use of agreement studies to evaluate self-reported data. *Self-knowledge of HbA1c (HbA1c SK ) implies that patients knew their own HbA1c. Abstract: Objective: The aim of this study was to evaluate the prevalence of accurate self-knowledge of a patient's own HbA1c level (HbA1c SK ), as a component of structural education (University Hospital's of Leicester (UHL), 2013) and its association with glycaemic control. Methods: Data from the GUIDANCE study, a cross-sectional study involving 7597 participants from eight European countries was used. HbA1c SK was evaluated and compared with laboratory measured HbA1c levels (HbA1c LAB ), which represented the measure of glycaemic control. Accuracy of the self-reported HbA1c was evaluated by using agreement statistical methods. Results: The prevalence of HbA1c SK was 49.4%. Within this group, 78.3% of the participants had accurately reported HbA1c SK . There was good level of agreement between HbA1c SK and HbA1c LAB (intra-class correlation statistic = 0.84, p < 0.0001). Participants with accurately reported HbA1c SK were found to have a statistically significantly lower HbA1c LAB compared to participants with inaccurately reported HbA1c SK (7.0% versus 7.3%, p < 0.001). Conclusion: Nearly half of the patients had self-knowledge of their own HbA1c level. Moreover, the participants with accurately reported HbA1c SK were found to have associated better glycaemic control.