Table 3.

Risk of central lymph node metastasis in solitary papillary thyroid microcarcinomas according to tumor extent

Variable	Adjusted OR	95% CI	P value
Within capsule	1 (ref)
Capsule invasion	1.446	1.082–1.931	0.013
Extracapsular extension	3.440	1.997–5.925	<0.001

OR odds ratio, CI confidence interval