Table 4.

AUC of pupil response parameters to help determination of the efficacy of SGB.

		AUC	P value	95 % CI	Cut off value	Sensitivity (%)	Specificity (%)
T3	B-IED(mm)	0.83	0.0001	0.71–0.91	> 0.6	67.3	87.5
	O-IED(mm)	0.64	0.11	0.51–0.76
	BO-IED(mm)	0.93	0.0001	0.84–0.98	> 0.40	73.1	100
T5	B-IED(mm)	0.87	0.00	0.76–0.95	> 0.5	94.2	75.0
	O-IED(mm)	0.56	0.57	0.43–0.69
	BO-IED(mm)	0.94	0.00	0.85–0.98	> 0.30	94.2	100
T10	B-IED(mm)	0.89	0.00	0.78–0.96	> 0.6	94.2	75.0
	O-IED(mm)	0.57	0.55	0.43–0.69
	BO-IED(mm)	0.94	0.00	0.85–0.99	> 0.50	86.5	100
T15	B-IED(mm)	0.92	0.00	0.82–0.98	> 0.8	86.5	87.5
	O-IED(mm)	0.58	0.51	0.45–0.71
	BO-IED(mm)	0.97	0.00	0.89–0.99	> 0.50	86.5	100

Note: AUC = area under the receiver operating characteristic curve; B-IED = Inter-eye difference before and after SGB of block side; O-IED = Inter-eye difference before and after SGB of opposite side; BO-IED = Inter-eye difference between block side and opposite side PD; T3 = 3 min after SGB; T5 = 5 min after SGB; T10 = 10 min after SGB; T15 = 15 min after SGB.