TABLE 4.

The SCOPE Index

	Value
Attribute	Traditional Units	SI Units	Points
	mg/dL	μmol/L
Total bilirubin	≤0.6	≤11	0
	0.7–2.7	11.1–46.7	+1
	2.8–4.8	46.8–82.4	+2
	≥4.9	≥82.5	+3
	g/dL	g/L
Albumin	≥4	≥40	0
	3.2–3.9	32–39	+1
	≤3.1	≤31	+2
	×103/μL	×109/L
Platelet count	≥225	≥225	0
	136–224	136–224	+1
	≤135	≤135	+2
	U/L	U/L
GGT	≤100	≤100	0
	101–249	101–249	+2
	≥250	≥250	+3
Cholangiography*	Normal		0
	Large-duct involvement		+ 1
	Total
	Low risk		0–3
	Medium risk		4–5
	High risk		6–11

The index is the sum of the points attributed to each of the patient’s total bilirubin, albumin, and platelet count.

^*Positive findings of multifocal large-duct beading and strictures on magnetic resonance or endoscopic retrograde cholangiopancreatography.