Table 1

StudyMean ageMean tumor size (cm)% positive lymph nodes% extra-thyroidal extension% distant metastasis% recurrence% disease-related mortality

Johnson
TCV (n=12)49.42.875421758.325
NV (n=12)48.32.342008.30

Michels
TCV (n=56)50237.539814.312.5
NV (n=503)45.61.52392.65.41.6

Moreno Egea
TCV (n=5)65.42.86*80100208020
NV (n=85)41.5NA**34.114.1NA**16.51.2

Prendiville
TCV (n=20)49.62.14065NA**205
NV
(n=1355***)
35.72.5398NA**152

Segal
TCV (n=19)NA**NA**NA**NA**NA**47.473.7
NV (n=223)NA**NA**NA**NA**NA**9.93.6

Terry
TCV (n=19)NA**4.2NA**NA**NA**35.35.9
NV (n=118)NA**2.8NA**NA**NA**3.80.8

*The size of two tumors reported >4 cm.
**Not Available.
***Article used NV data from Mazzaferri and Jhiang [12].