期刊
DIABETOLOGIA
卷 51, 期 2, 页码 365-371出版社
SPRINGER
DOI: 10.1007/s00125-007-0883-x
关键词
cardiovascular disease; DCCT; glucose; glycated haemoglobin; HbA1c; hyperglycaemia; mean glucose; type 1 diabetes
Aims/hypothesis It is not known whether mean blood glucose (MBG) predicts the risk of macrovascular complications in diabetes any differently from HbA(1c). In this study we therefore analysed data from the Diabetes Control and Complications Trial (DCCT) to assess the relationship between MBG, HbA(1c) and glucose variability with regard to the risk of cardiovascular disease in patients with type 1 diabetes. Methods Pre- and postprandial seven-point glucose profiles were collected quarterly during the DCCT in 1441 individuals. The relationship between time to first cardiovascular event and MBG, HbA(1c) and daily SD of blood glucose was assessed by Cox regression after adjusting for the known risk factors of macrovascular disease and the treatment groups of the patients. Results Cox regression showed MBG to be predictive of a cardiovascular event (p=0.019), but not HbA(1c) (p=0.858). A rise of 1 mmol/l in MBG was associated with an 11% rise in cardiovascular risk. MBG remained highly predictive (p=0.015) even after adjustment for HbA(1c) values and glucose variability. Conclusions/interpreation This study has shown that during the DCCT MBG was a better predictor of the macrovascular complications of type 1 diabetes than HbA(1c). It indicates that the cardiovascular risk associated with hyperglycaemia appeared within the time period of the study and that blood glucose rather than HbA(1c) may be the preferred means of assessing this risk.
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