Tumour Recurrence, Depth of Invasion, and Temple Location as Independent Prognostic Parameters of Lymph Node Metastases of Head and Neck Cutaneous Squamous Cell Carcinomas

Table 2

Differences between the cSCC N0 and cSCC N+ groups of patients.

		cSCC N+		cSCC N0		Fisher’s exact test’s value
		Number	Percent (%)	Number	Percent (%)
Recurrence	0	27	64.3	71	93.4	0.00005
	1	15	35.7	5	6.6
Depth of invasion ≥4 mm	0	12	28.6	49	64.5	0.00018
	1	30	71.4	27	35.5
Grading G 1 + 2 vs. G3	0	27	64.3	59	77.6	0.11800
	1	15	35.7	17	22.4
Resection margins R1, Rx, R0	R0	14	43.8	51	67.1	0.01400
	R1	6	18.8	3	3.9
	Rx	12	37.5	22	28.9
Resection margins R0 vs. R1 + Rx	R0	14	43.8	51	67.1	0.02400
	R1 + Rx	18	56.3	25	32.9
T stage	1	13	31.0	54	71.1	0.00013
	2	11	26.2	8	10.5
	3	14	33.3	13	17.1
	4	4	9.5	1	1.3
T stage 1 vs. 2 vs. 3 + 4	1	13	31.0	54	71.1	0.00014
	2	11	26.2	8	10.5
	3 + 4	18	42.9	14	18.4
T stage 1 + 2 vs. 3 + 4	1 + 2	24	57.1	62	81.6	0.00400
	3 + 4	18	42.9	14	18.4
Tumour size (mm)	<10	5	11.0	38	50.0	0.0002
	10–20	14	33.3	17	22.4
	20–40	17	40.5	15	19.7
	>40	5	14.3	6	7.9
Tumour size (mm)	<10	5	11.9	38	50.0	<0.0001
	10–20	14	33.3	17	22.4
	>20	23	54.8	21	27.6
Tumour site	Auricular	15	35.6	50	65.8	<0.0001
	External ear canal	3	7.1	7	9.2
	Temporal	21	50.0	9	11.8
	Nose	3	7.1	10	13.2

^∗bold values are statistically significant.