American Association for Cancer Research

Table 1.

Patient and sample characteristics

Patient	Gender	Age	Primary tumor							Lymph node metastasis, tumor %
						Location	Size (cm)	Tumor %
						Location	Size (cm)			>75	50-75	>75	50-75	25-50	<10
1	M	55	Oral cavity	3.0	+			+
2	F	62	Oral cavity	4.2	+		+
3	M	67	Oropharynx	7.3		+	+
4	M	52	Oral cavity	2.3	+			+
5*	F	38	Oral cavity	4.0		+			+
7	M	51	Oral cavity	3.0	+			+
9*	M	61	Oropharynx	3.5	+				+
10*	M	42	Oropharynx	5.5		+			+
11*	F	55	Oral cavity	6.0	+				+
13	M	82	Oral cavity	2.5	+		+
14	F	52	Oropharynx	7.0	+		+
17	M	61	Oral cavity	2.9	+			+
18*	M	50	Oral cavity	3.0	+				+
19*	M	66	Oral cavity	5.0	+				+
6^†	M	50	Oral cavity	4.0		+				+
8^†	M	58	Oropharynx	3.0		+				+
12^†	F	38	Oropharynx	4.0	+					+
15^†	F	63	Oropharynx	5.0		+				+
16^†	M	46	Oral cavity	5.2	+					+

Patient	Gender	Age	Primary tumor							Lymph node metastasis, tumor %
						Location	Size (cm)	Tumor %
						Location	Size (cm)			>75	50-75	>75	50-75	25-50	<10
1	M	55	Oral cavity	3.0	+			+
2	F	62	Oral cavity	4.2	+		+
3	M	67	Oropharynx	7.3		+	+
4	M	52	Oral cavity	2.3	+			+
5*	F	38	Oral cavity	4.0		+			+
7	M	51	Oral cavity	3.0	+			+
9*	M	61	Oropharynx	3.5	+				+
10*	M	42	Oropharynx	5.5		+			+
11*	F	55	Oral cavity	6.0	+				+
13	M	82	Oral cavity	2.5	+		+
14	F	52	Oropharynx	7.0	+		+
17	M	61	Oral cavity	2.9	+			+
18*	M	50	Oral cavity	3.0	+				+
19*	M	66	Oral cavity	5.0	+				+
6^†	M	50	Oral cavity	4.0		+				+
8^†	M	58	Oropharynx	3.0		+				+
12^†	F	38	Oropharynx	4.0	+					+
15^†	F	63	Oropharynx	5.0		+				+
16^†	M	46	Oral cavity	5.2	+					+

NOTE: Primary tumors and lymph node metastasis samples are grouped according to their tumor percentage. Age is age at diagnosis; size is diameter of tumor in cm.

Patients of whom the analyzed metastasis sample contained <50% tumor cells.

†

Comprises five sample pairs for which the lymph node metastases samples contain <10% tumor cells and are referred to as low tumor percentage pairs.

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