Table 3—

Cumulative prevalence of microvascular complications*

	Adolescents			Young adults
		Baseline	Follow-up	Baseline	Follow-up
n	33	29	54	49
Background retinopathy	0	5 (17)	7 (13)	17 (35)
Preproliferative retinopathy	0	3 (10)	0	2 (4)
Laser-treated retinopathy	0	5 (17)	1 (2)	16 (33)
Microalbuminuria	0	4 (14)	1 (2)	3 (6)
Proteinuria	0	4 (14)	1 (2)	3 (6)
Dialysis	0	0	0	1 (2) (has since died)
Transplant	0	0	0	2 (4)
Died from renal failure	0	0	0	2 (4)
Peripheral neuropathy	0	1 (3)	0	10 (20)
Autonomic neuropathy	0	0	0	5 (10)
One serious complication only†	0	6 (21)	2 (4)	7 (14)
Two serious complications	0	2 (7)	0	6 (12)
Three or more serious complications	0	1 (3)	0	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.