Table 1

Characteristics of the EDC 1965–1980 type 1 diabetes diagnosis subcohort at study baseline (1986–1988)

CharacteristicMean (SD), unless otherwise noted
n434
Age (years)23.4 (5.6)
Diabetes duration (years)14.8 (4.3)
Age at diabetes onset (years)8.6 (4.1)
Female sex, % (n)49.8% (216)
African American, % (n)2.3% (10)
HbA1c (%; mmol/mol)8.91 (1.57); 74 (17.2)
A1c Months528.6 (319.7)
Prevalent complications, % (n)
 Proliferative retinopathy16.1% (70)
 Microalbuminuria39.2% (170)
 Overt nephropathy18.2% (79)
 ESRD1.2% (5)
 CDSP14.1% (61)
 CAD4.8% (21)