Diabetic Microangiopathy Is an Independent Predictor of Incident Diabetic Foot Ulcer

Table 2

Diabetic foot ulcer incidence according to the microangiopathy complications category at baseline.

Category		Number of; cases,	Time at risk; (person-years)	Incidence; (per 1,000 person-years)	5-year cumulative; incidence (%)	(95% CI)	10-year cumulative; incidence (%)	(95% CI)
Category 1	712	13	8,063	1.6	1.2	(0.4–3.1)	1.7	(0.9–3.1)
Category 2	195	3	2,025	1.5	1.1	(0.2–7.6)	1.2	(0.3–4.8)
Category 3	185	7	2,054	3.4	3.4	(1.1–10.4)	4.2	(2.0–8.8)
Category 4	213	27	2,148	12.5	3.9	(1.4–10.4)	12.7	(8.4–19.1)
Total	1,305	50	14,291	3.5	1.9	(1.1–3.3)	3.7	(2.7–5.0)

CI: confidence interval.