Construction of a Diagnostic Model for Lymph Node Metastasis of the Papillary Thyroid Carcinoma Using Preoperative Ultrasound Features and Imaging Omics

Table 1

Sensitivity analysis before and after gap-filling.

Variables	Missing number	Before filling (n = 428)	After filling (n = 428)	Statistics
Carcinoembryonic antigen, M(Q1,Q3)	17 (3.97%)	1.42 (0.88, 2.10)	1.42 (0.89, 2.07)	Z = −0.066	0.948
Free triiodothyroxine, mean ± SD	8 (1.87%)	5.15 ± 1.31	5.16 ± 1.32	t = −0.06	0.949
Free thyroxine, mean ± SD	8 (1.87%)	18.29 ± 4.76	17.96 ± 3.70	t = 1.12	0.261
Thyroid stimulating hormone, M(Q1,Q3)	8 (1.87%)	1.93 (1.12, 3.17)	1.96 (1.15, 3.19)	Z = 0.368	0.713
Thyroid globulin antibody, M(Q1,Q3)	8 (1.87%)	19.04 (12.98, 66.89)	18.66 (12.97, 57.48)	Z = −0.397	0.691
Maximum diameter of nodule, M(Q1,Q3)	1 (0.23%)	0.80 (0.50, 1.20)	0.80 (0.50, 1.20)	Z = −0.055	0.956