An Efficacy Predictive Method for Diabetic Ulcers Based on Higher-Order Markov Chain-Set Pair Analysis

Table 3

Classification of grade according to severity score for diabetic ulcers.

Index	Grade
	I	II	III	IV	V
Wound area (K1: cm^2)	0-1	1–4	4–9	9–16	>16
Wound depth (K2: cm)	0-1	1-2	2-3	3-4	>4
Exudates color (K3)	Transparent	Red	Yellow	Green	Black
Exudates volume (K4: layers of gauze wetted)	0–4	5–8	9–12	13–16	>16
Necrotic tissue area (K5: %)	0–20	21–40	41–60	61–80	81–100
New granulation and epithelial tissue color (K6)	Bright red	Red	Light red	Pink	Pale
New granulation and epithelial tissue area (K7: %)	81–100	61–80	41–60	21–40	0–20
Wound skin temperature (K8)	Normal	Slightly hot	Hot	Pretty hot	Scorching hot
Wound skin color (K9)	Normal	Reddish	Red	Bright red	Dark red
Pain (K10: VAS)	0–2	3-4	5-6	7-8	9-10