Year of diagnosis of diabetes | ||||
Group A,1986–1989 | Group B,1990–1993 | Group C,1994–1996 | p Value | |
Sample size, % male | 165 (54) | 179 (54) | 183 (56) | |
Age at diagnosis diabetes, years | 8.8 (4.1) | 8.6 (4.2) | 9.2 (3.8) | 0.31 |
Subjects with microalbuminuria, n (%) | 35 (19.0) | 39 (20.9) | 36 (19.1) | 0.87 |
Cumulative prevalence of microalbuminuria, % (95% CI) | 23.2 (15.4 to 30.0) | 24.8 (17.8 to 31.8) | 31.7 (20.9 to 42.5) | 0.22 |
Mean HbA1c in year 1 of diabetes, % | 10.3 (2.1) | 10.2 (2.0) | 9.6 (2.1) | 0.09 |
Mean HbA1c in year 10 of diabetes, % | 10.1 (1.7) | 9.4 (1.5) | 8.9 (1.5) | <0.001 |
Insulin dose, units/kg/day | 0.9 (0.2) | 0.9 (0.3) | 0.9 (0.3) | 0.33 |
Data shown are mean (SD) unless otherwise stated.