Construction of a novel cuproptosis-related gene signature for predicting prognosis and estimating tumor immune microenvironment status in papillary thyroid carcinoma

Table 1 Clinical characteristics of patients with PTC obtained from the TCGA database in the present study

Clinical characteristics	Total (n = 476)	Training cohort (n = 238)	Verification cohort (n = 238)	χ2	P
Gender				0.271	0.603
Female	351	178	173
Male	125	60	65
Age				1.402	0.236
< 55	326	157	169
≥ 55	150	81	69
T stage				0.998	0.910
T1	137	64	73
T2	160	84	76
T3	159	80	79
T4	18	9	9
Tx	2	1	1
N stage				0.416	0.812
N0	221	114	107
N1	208	101	107
Nx	47	23	24
M stage				0.144	0.959
M0	267	132	135
M1	8	4	4
Mx	201	102	99
Pathologic stage				2.932	0.402
I	273	128	145
II	49	28	21
III	104	54	50
IV	50	28	22
Disease free status				0.096	0.756
Yes	430	216	214
No	46	22	24

PTC papillary thyroid carcinoma, TCGA the Cancer Genome Atlas, T tumor, N lymph node, M metastasis

ISSN: 1471-2407