Table 2

 Univariate analysis of clinicopathological parameters of 213 papillary thyroid carcinomas

Parametersχ2 Valuep Value
Univariate analyses were performed using the Kaplan–Meier method, and the χ2 and p values were obtained using the log rank (Mantel-Cox) test (*p<0.05, significant).
Age (⩽60 v >60 years)7.6910.0055*
Sex (male v female)6.3190.0119*
Diameter (⩽4 v >4 cm)21.479<0.0001*
Multiplicity (multiple v single)0.2580.6113
Extrathyroid invasion (absent v present)17.0320.0002*
Growth pattern (expansive v invasive)8.6210.0033*
Surgical cut margin (negative v positive)3.1420.0763
Cellular polarity (retained v lost)8.4070.0036*
Cellular dissociation (absent v present)7.7040.0055*