Table 1.

Clinical data of patients with squamous cell carcinoma of the oral tongue (SCCOT)

No.	ID	Gender	Age at diagnosis	Smoking history	Locationa	TNM	Follow‐up months	Status	Samples
1	p35	Female	24	Non‐smoker	2	T2N0M0	13	Dead	T, TF
2	p82	Female	19	Former Smokerb	1	T4aN0M0	18	Dead	T, BL
3	p98	Male	31	Non‐smoker	3	T2N0M0	62	Alive	T, TF,BL
4	p111	Female	31	Smoker	2	T1N0M0	53	Alive	T, TF,BL
5	p119	Male	67	Non‐smoker	2	T2N0M0	47	Alive	T, TF,BL
6	p124	Male	55	Unknown	1, 3	T4N2bM0	3	Dead	T, TF,BL
7	p137	Female	71	Non‐smoker	2	T2N0M0	38	Alive	T, TF,BL
8	p149	Female	69	Former smokerc	2	T1N0M0	18	Deadb	T, TF,BL
9	p154	Female	42	Unknown	4	T1N1M0	28	alive	T, TF,BL
10	p212	Male	52	Non‐smoker	1, 5	T4aN2bM0	5	alive	T, TF,BL

BL, Blood; T, Tumor; TF, Tumor‐free tongue.

^a1 = Tongue; 2 = Border of tongue; 3 = Overgrowth into floor of mouth; 4 = Ventral side of tongue; 5 = Base of tongue.

^bSmoked for 1 y, stopped 3 y before the tumor was diagnosed.

^cStopped smoking 20 y before the tumor was diagnosed.

Died from another disease.