Table 1:

Patient characteristics

Patient No.	Sex	Age (yr)	Primary Site and Stage				HPV Status	Double-Baseline PET	Intratreatment PET	Days between PET2 and PET3
1	M	65	Base of tongue	T1	N2b	M0	+	Yes	Yes	17
2	M	50	Tonsil	T1	N2a	M0	+	Yes	No
3	M	44	Tonsil	T2	N2b	M0	Unknown	Yes	Yes	12
4	M	60	Tonsil	T1	N2b	M0	+	Yes	Yes	14
5	M	38	Nasopharynx	T2	N2	M0	Unknown	Yes	Yes	17
6	M	55	Base of tongue	T4	N0	M0	Unknown	Yes	Yes	13
7	M	53	Base of tongue	T4	N2c	M0	−	Yes	Yes	13
8	M	48	Tonsil	T2	N2b	M0	+	Yes	Yes	11
9	M	48	Tonsil	T2	N2b	M0	+	Yes	Yes	25
10	M	55	Tonsil	T1	N2b	M0	+	Yes	No
11	M	50	Tonsil	T1	N2c	M0	+	Yes	Yes	13
12	M	60	Tonsil	T2	N2b	M0	+	Yes	Yes	21
13	M	39	Tonsil	T3	N2b	M0	+	Yes	Yes	14
14	M	49	Soft palate	T2	N2c	M0	−	Yes	Yes	23
15	M	42	Tonsil	T4	N0	M0	+	Yes	Yes	13
16	M	68	Base of tongue	T2	N2b	M0	+	Yes	Yes	11
17	M	49	Base of tongue	T3	N0	M0	+	Yes	Yes	8