Colchicum autumnale in Patients with Goitre with Euthyroidism or Mild Hyperthyroidism: Indications for a Therapeutic Regulative Effect—Results of an Observational Study

Figure 3

Regression curve of free triiodothyronine change after 6–12 months (fT3 ) against initial values (); coefficient: proportion of variance that is declared by the regression curve. Patients with higher initial fT3 ( mU/mL) tend to have significant reductions of fT3 (fT3  mU/mL) while those with fT3 of 3.5 or less show only small changes (blue marks: group 1; red marks: group 2).