Table 1.

Clinical and pathologic features of patients with the preoperative serum level of 1,25(OH)2D3 in PTC patients.

Index	Median of 1,25(OH)2D3	P(test)
Age		0.648
≥45	38.42
<45	40.76
Sex		0.377
Male	45.09
Female	38.58
Tumor size		0.402
≤1	37.11
>1	41.44
TNM stage		0.851
I+II	39.75
III+IV	38.59
RRS		0.506
Low risk	38.00
Middle and high risk	41.44
LNM		0.599
No	38.40
Yes	41.16

TNM stage – tumor node metastasis stage; RRS – recurrence risk stratification; LNM – lymph node metastasis.