Table 4.

Sensory block, motor block incidence for different PIEB volume

	Volume of PIEB(mL)
	7		8		9		10		11		12
	Group A (1)	Group B (1)	Group A (2)	Group B(12)	Group A(4)	Group B(26)	Group A(24)	Group B(11)	Group A(21)	Group B(1)	Group A(0)	Group B (0)
highest Sensory block
T7	0	0	0	0	0	0	0	0	0	0	0	0
T8	0	0	0	0	0	2	3	4	13	1	0	0
T9	0	0	0	0	1	10	8	5	8	0	0	0
T10	0	0	1	6	1	11	9	1	0	0	0	0
T11	0	1	0	1	2	1	4	1	0	0	0	0
T12	1	0	1	5	0	2	0	0	0	0	0	0
Modified Bromage score
0	1	1	2	12	4	25	23	10	20	1	0	0
1	0	0	0	0	0	1	1	1	1	0	0	0
2	0	0	0	0	0	0	0	0	0	0	0	0
3	0	0	0	0	0	0	0	0	0	0	0	0