Table 1.

Demographics and Baseline Characteristics (n = 60)

Characteristic	No.	%
Age, years
Median	59
Range	26-84
Race/ethnicity
White	47	78
Black	5	8
Hispanic	5	8
Asian	3	5
Male sex	35	58
ECOG performance status
0	24	40
1	36	60
Histology
Papillary	30	50
Follicular/Hürthle cell variant	15/11	25/18
Medullary	11	18
Anaplastic	2	3
Other*	2	3
Current disease stage
IV	30	50
Recurrent	30	50
Received previous treatment	56	93
Surgery	52	87
Radiotherapy	49	82
131I	43	72
Chemotherapy	9	15
Investigational therapy	5	8
Chemotherapy/immunotherapy	1	2
Immunotherapy, biologic	1	2
Other	8	13
Treatment-naive	4	7

Abbreviations: ECOG, Eastern Cooperative Oncology Group; ¹³¹I, radioactive iodine.

^*One patient each had insular carcinoma and neuroendocrine carcinoma.