The Association between HbA1c, Fasting Glucose, 1-Hour Glucose and 2-Hour Glucose during an Oral Glucose Tolerance Test and Cardiovascular Disease in Individuals with Elevated Risk for Diabetes

Marcus Lind, Jaakko Tuomilehto, Matti Uusitupa, Olle Nerman, Johan Eriksson, Pirjo Ilanne-Parikka, Sirkka Keinänen-Kiukaanniemi, Markku Peltonen, Aldina Pivodic and Jaana Lindström

PLOS ONE, 2014, vol. 9, issue 10, 1-8

Abstract: Objective: To determine the association between HbA1c, fasting plasma glucose (FPG), 1-hour (1 hPG) and 2-hour (2 hPG) glucose after an oral glucose tolerance test (OGTT) and cardiovascular disease in individuals with elevated risk for diabetes. Design: We studied the relationship between baseline, updated mean and updated (last) value of HbA1c, FPG, 1 hPG and 2 hPG after an oral 75 g glucose tolerance test (OGTT) and acute CVD events in 504 individuals with impaired glucose tolerance (IGT) at baseline enrolled in the Finnish Diabetes Prevention Study. Setting: Follow-up of clinical trial. Participants: 504 individuals with IGT were followed with yearly evaluations with OGTT, FPG and HbA1c. Main Outcome Measure: Relative risk of CVD. Results: Over a median follow-up of 9.0 years 34 (6.7%) participants had a CVD event, which increased to 52 (10.3%) over a median follow-up of 13.0 years when including events that occurred among participants following a diagnosis of diabetes. Updated mean HbA1c, 1 hPG and 2 hPG, HR per 1 unit SD of 1.57 (95% CI 1.16 to 2.11), p = 0.0032, 1.51 (1.03 to 2.23), p = 0.036 and 1.60 (1.10 to 2.34), p = 0.014, respectively, but not FPG (p = 0.11), were related to CVD. In analyses of the last value prior to the CVD event the same three glycaemic measurements were associated with the CVD events, with HRs per 1 unit SD of 1.45 (1.06 to 1.98), p = 0.020, 1.55 (1.04 to 2.29), p = 0.030 and 2.19 (1.51 to 3.18), p

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0109506

DOI: 10.1371/journal.pone.0109506

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