Table 1:

Procedure times, number of injections per procedure, and required volume of LEA^a

	Onyx		PHIL		P ValueOnyx vs PHIL,b P Valuesubgroupsc
	Onyx_30s	Onyx_60s	PHIL_30s	PHIL_60s
Total procedure time (sec)	645 (271–845)		561 (375–960)		.959
	572	645	483	742	.125
	(271–685)	(565–845)	(375–575)	(496–960)
Injection time (sec)	250 (91–285)		152 (88–305)		.235
	155	263	193	142	.093
	(91–250)	(250–285)	(88–305)	(126–180)
Time per injection (sec)	23 (7–44)		14 (9–33)		.279
	14	34	21	11	.067
	(7–17)	(29–44)	(9–33)	(11–18)
Injections per procedure (No.)	9 (6–19)		10 (7–14)		.749
	13	8	10	11	.240
	(7–19)	(6–19)	(7–14)	(7–14)
Volume of LEA per procedure (mL)	0.48 (0.25–0.65)		0.15 (0.10–0.35)		.002
	0.53	0.45	0.23	0.13	.013
	(0.25–0.65)	(0.35–0.50)	(0.15–0.35)	(0.10–0.20)	(Onyx_30s vs PHIL_60s)
Volume of LEA per honeycomb-like section of the artificial nidus (μL)	15.5 (10.1–27.4)		3.6 (0.6–9.5)		<.001
	19.5	13.3	5.2	2.9	.006
	(14.3–27.4)	(10.1–17.5)	(2.6–9.5)	(0.6–6.5)	(Onyx_30s vs PHIL_60s)

Note:—Onyx indicates Onyx 18; PHIL, PHIL 25.

^aData presented as median (range).

^bMann-Whitney U test.

^cKruskal-Wallis test with the post hoc Dunn test.