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Table 3—

Cumulative prevalence of microvascular complications*

Adolescents
Young adults
BaselineFollow-upBaselineFollow-up
n 33 29 54 49 
Background retinopathy 5 (17) 7 (13) 17 (35) 
Preproliferative retinopathy 3 (10) 2 (4) 
Laser-treated retinopathy 5 (17) 1 (2) 16 (33) 
Microalbuminuria 4 (14) 1 (2) 3 (6) 
Proteinuria 4 (14) 1 (2) 3 (6) 
Dialysis 1 (2) (has since died) 
Transplant 2 (4) 
Died from renal failure 2 (4) 
Peripheral neuropathy 1 (3) 10 (20) 
Autonomic neuropathy 5 (10) 
One serious complication only 6 (21) 2 (4) 7 (14) 
Two serious complications 2 (7) 6 (12) 
Three or more serious complications 1 (3) 6 (12) 
Adolescents
Young adults
BaselineFollow-upBaselineFollow-up
n 33 29 54 49 
Background retinopathy 5 (17) 7 (13) 17 (35) 
Preproliferative retinopathy 3 (10) 2 (4) 
Laser-treated retinopathy 5 (17) 1 (2) 16 (33) 
Microalbuminuria 4 (14) 1 (2) 3 (6) 
Proteinuria 4 (14) 1 (2) 3 (6) 
Dialysis 1 (2) (has since died) 
Transplant 2 (4) 
Died from renal failure 2 (4) 
Peripheral neuropathy 1 (3) 10 (20) 
Autonomic neuropathy 5 (10) 
One serious complication only 6 (21) 2 (4) 7 (14) 
Two serious complications 2 (7) 6 (12) 
Three or more serious complications 1 (3) 6 (12) 

Data are n (%).

*

Includes data on subjects not reinterviewed where available, including those subjects who died.

Serious complications defined as laser-treated retinopathy, preproliferative retinopathy, proteinuria, renal failure, peripheral nephropathy, or autonomic neuropathy.

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