Differential rates of intravascular uptake and pain perception during lumbosacral epidural injection among adults using a 22-gauge needle versus 25-gauge needle: a randomized clinical trial

Table 2 Intravascular uptake incidence per level

Levels	22-gauge (n = 136)	25-gauge (n = 113)	p-value
L2	1/4	0/7
L3	0/17	3/19
L4	0/33	0/32
L5	2/66	0/32
S1	5/16	5/23	0.767
Overall incidence	8/136 (5.9%)	8/113 (7.1%)	0.701

ISSN: 1471-2253