. Author manuscript; available in PMC: 2014 Jul 10.

Published in final edited form as: Ann Surg Oncol. 2008 Nov 1;16(1):186–190. doi: 10.1245/s10434-008-0187-5

TABLE 1.

Patient and tumor characteristics in 222 patients with a positive SLN biopsy

	Factor	NSLN– (n =185)	NSLN+ (n =37)	p-Value
Age	Mean (range)	55 (7–90)	56 (10–86)	0.56
Sex	Female	64 (35%)	12 (32%)	0.85
	Male	121 (65%)	25 (68%)
Site	Extremity	71 (39%)	20 (54%)	0.187
	Head and neck	15 (8%)	5 (14%)	0.496
	Truncal	98 (53%)	12 (32%)	0.062
T stage	T1	11 (6%)	0 (0%)	0.256
	T2	56 (30%)	4 (11%)	0.021
	T3	62 (34%)	18 (47%)	0.158
	T4	55 (30%)	16 (42%)	0.359
Thickness (mean)		3.7 (mm)	5.5 (mm)	0.004
Ulceration	Present	82 (45%)	24 (63%)	0.011
	Absent	85 (46%)	8 (21%)
	Unknown	17 (9%)	6 (16%)