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Copyright ©The Author(s) 2015.
World J Diabetes. Mar 15, 2015; 6(2): 345-351
Published online Mar 15, 2015. doi: 10.4239/wjd.v6.i2.345
Table 3 Studies on the role of tight glycemic control in long-standing diabetes mellitus
StudyNo. participantsYears since diagnosisMean age at enrollment (yr)Length of follow up (yr)PopulationResults
ACCORD trial[32]1025110 (median)62.2 ± 6.83.4 (median)United States and CanadaTerminated after 3.5 yr; excessive deaths in the intensive glycemic control arm
ADVANCE trial[33]111408 (mean)66 ± 65 (median)Asia, Australasia, Europe, and North America (20 countries)No significant effect of tight glycemic control on major macrovascular events or death; significant reduction in nephropathy incidence
VADT trial[34]179111.5 (mean)60.5 ± 95.6 (median)United States military veterans; 97% malesNo significant effect of tight glycemic control on major macrovascular events or death
Diabetes and aging study[36]710928.3 (mean)71 ± 7.43.1 (mean)California, United StatesU-shape relationship between mortality and HbA1c, with the lowest mortality rate at HbA1c 6%-8%