Age as a Prognostic Factor in Anaplastic Thyroid Cancer

Table 1

Demographic and clinical characteristics of patients with anaplastic thyroid cancer.

Variables	Number	Percent (%)
Gender
Male	54	36.0
Female	96	64.0
Residence in endemic goiter area	11	11.3
Goiter	53	35.5
Duration of goiter
0	97	64.7
<10	18	12.0
10–20	18	12.0
>20	17	11.3
Surgery
Yes	85	56.7
No	65	43.3
Type of surgery
Open biopsy	12	14.1
Tracheotomy	2	2.4
Tumor reduction	27	31.8
Lobectomy	4	4.7
Thyroidectomy and dissection	40	47.1
Multicentricity of tumor	5	6.0
Presence in one or both thyroid lobes
One	58	68.2
Both	27	31.8
Tumor size
T1–T3	3	3.6
T4	82	96.4
Metastases in lymph nodes	54	63.5
Distant metastases	28	32.9
Preexisting well-differentiated tumor (papillary)	49	57.6
Lymphocyte infiltration	7	8.2
Preoperative radiotherapy	2	2.4
Postoperative radiotherapy	67	78.7
Chemotherapy	2	78.7
Radioactive iodine therapy	8	9.4
Other malignant tumors	6	7.1
Diabetes	13	15.3
Arterial hypertension	26	30.6