Disease characteristics.

aData are medians with interquartile range (25th and 75th centile) in the groups “All patients, n = 121” and “Patients with undetectable Tg-Tg-on”, N = 115”.Data are medians and range in the groups “Patients with Tg-on 0.6–1.0 ng/ml, N = 3”and “Patients with Tg-on >1.0, N = 3”.bTNM-classification and staging according to Hermanek & Sobin, 1992 [34].cLow-risk patients are stage I disease if younger than 45 years or Stage I or II if older than 45 years.