Table 2.

Receiver Operating Characteristic Curve Values of Each Stage

Start of arthroscopy	Cut-off Value		AUC
	SBP	DBP	SBP	DBP
Acromioplasty	104	60	0.95	0.91∗
Refresh of the footprint	116	70	0.96	0.94∗
Marrow vent creation	106	58	0.70	0.73∗
Rotator cuff fixation	108	58	0.55	0.67

AUC, area under the curve; DBP, diastolic blood pressure, SBP, systolic blood pressure.

^∗, accuracy, This applies to both SBp and DBp;

0.5∼0.7, low accuracy;

0.7∼0.9, moderate accuracy;

0.9∼1.0, high accuracy.