Table 3.

Survival rates according to clinical and pathological data

Variable	Progression-free survival			Specific survival
	Total events	One-year	p-value	Total events	One-year	p-value
Sex
Female	4	86.7	0.050	14	72.3	0.025
Male	35	63.3		79	49.8
Age at diagnosis
≤ 60 years old	18	73.3	0.553	45	54.9	0.266
> 60 years old	21	63.0		48	53.2
Alcohol consumption
≤ 20 years	5	74.6	0.218	16	62.0	0.301
> 20 years	34	66.9		77	52.0
Tobacco consumption
≤ 20 years	11	51.3	0.158	19	49.0	0.796
> 20 years	28	73.1		74	55.3
Clinical stagea
I or II	6	91.2	0.019	13	78.6	<0.001
III or IV	32	57.9		73	44.2
Histological gradea
Well differentiated	4	76.2	0.170	10	63.5	0.426
Moderately differentiated	18	72.4		55	48.8
Poorly differentiated	15	57.4		26	61.4
Surgery
No	32	65.8	0.486	84	47.5	<0.001
Yes	7	80.0		9	85.4
Chemoradiotherapy
No	8	72.4	0.731	24	34.6	0.039
Chemo or Radio	15	62.3		36	47.7
Chemo and Radio	16	72.9		33	69.1
HPVa
Negative	23	69.3	0.885	56	52.6	0.093
Positive	3	71.4		11	31.3
p16a
Negative	35	66.9	0.956	84	52.4	0.739
Positive	4	75.2		9	60.6
p53a
Negative	12	66.3	0.892	27	51.4	0.584
Positive	26	67.0		63	54.9

^aThere are missing values

Entries in boldface are significantly different