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Contemporary Risk Estimates of Three HbA(1c) Variables for Myocardial Infarction in 101,799 Patients Following Diagnosis of Type 2 Diabetes

Marita Olsson (Institutionen för matematiska vetenskaper, matematisk statistik) ; V. Schnecke ; C. Cabrera ; Stanko Skrtic ; Marcus Lind
Diabetes Care (0149-5992). Vol. 38 (2015), 8, p. 1481-1486.
[Artikel, refereegranskad vetenskaplig]

OBJECTIVE This study evaluated the risk of myocardial infarction (MI) by impaired glycemic control in a contemporary large cohort of patients with type 2 diabetes followed from diagnosis. Patients with type 2 diabetes diagnosed between 1995 and 2011 were retrieved from the Clinical Practice Research Datalink in the U.K., and followed from diagnosis until event of MI or end of study in 2013. Two subcohorts were defined: an early cohort with those diagnosed from 1997 to 2004 and a recent cohort with those diagnosed from 2004 to 2011. Association between each of three HbA(1c) metrics and MI was estimated using adjusted proportional hazards models. In the overall cohort (n = 101,799), the risk increase for MI per 1% (10 mmol/mol) increase in HbA(1c) was higher for updated latest and updated mean HbA(1c) of 1.11 (95% CI 1.09-1.13) and 1.15 (1.13-1.18) than for baseline HbA(1c) of 1.05 (1.03-1.06). In the early subcohort, the corresponding risk estimates were greater than those in the recent subcohort. When categorized, the updated latest variable showed an increased risk for HbA(1c) <6% (42 mmol/mol), relative category 6-7%, in the recent but not in the early subcohort, with hazard ratios of 1.23 (1.08-1.40) and 1.01 (0.84-1.22), respectively. The two time-updated HbA(1c) variables show a stronger relation with MI than baseline HbA(1c). The risk association between HbA(1c) and MI has decreased over time. In recently diagnosed patients with type 2 diabetes, an increased risk of MI exists at a current HbA(1c) of <6.0% (42 mmol/mol).

Denna post skapades 2015-08-26. Senast ändrad 2016-07-19.
CPL Pubid: 221262


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Institutioner (Chalmers)

Institutionen för matematiska vetenskaper, matematisk statistik (2005-2016)
Institutionen för medicin (GU)
Institutionen för medicin, avdelningen för molekylär och klinisk medicin (GU)



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