. Author manuscript; available in PMC: 2018 Jun 1.

Published in final edited form as: Am J Obstet Gynecol. 2017 Feb 16;216(6):594.e1–594.e13. doi: 10.1016/j.ajog.2017.02.021

Table 2.

Use of sentinel node techniques over time.

	2011		2012		2013		2014		2015		P-value

	N	%	N	%	N	%	N	%	N	%
SLN biopsy	100	1.6	160	2.3	446	6.2	525	8.3	135	10.6	<0.001
Indocyanine green	44	0.7	102	1.4	320	4.4	292	4.6	92	7.2	<0.001
Isosulfan blue	14	0.2	20	0.3	180	2.5	247	3.9	62	4.8	<0.001
Technetium-99	43	0.7	26	0.4	28	0.4	30	0.5	6	0.5	0.19

P-values were from Cochran-Armitage trend tests. Techniques are not mutually exclusive.