Risk Factors for Contralateral Occult Papillary Thyroid Carcinoma in Patients with Clinical Unilateral Papillary Thyroid Carcinoma: A Case-Control Study

Table 2

Univariate and multivariate analyses of predicting factors of COPTC.

Variables	Crude OR (95% CI)	P	Adjusted OR (95% CI)	B	Wald	P
Multifocality
Absence	1		1
Presence	2.18 (1.13–4.20)	0.02	2.21 (1.11–4.40)	0.79	5.06	0.03
Diameter
< 1 cm	1
≥ 1 cm	1.21 (0.62–2.34)	0.57
Capsular
Invasion	1		1
Intact	2.23 (1.14–4.35)	0.02	2.54 (1.24–5.19)	0.93	6.61	0.01
CNM
Absence	1		1
Presence	2.52 (1.06–5.98)	0.04	3.00 (1.21–7.49)	1.10	5.57	0.02
LNM
Absence	1	0.27
Presence	1.48 (0.74–2.97)
HT
Absence	1		1
Presence	2.05 (1.05–3.99)	0.04	2.08 (1.02–4.23)	0.73	4.09	0.04
B-RAF
Negative	1	0.72
Positive	0.87 (0.40–1.86)