In terms of TPO-Ab
levels, 35 of 38 patients (92%) had a
decrease, 2 patients had undulating
levels, and 1 patient had an inverse hyperbolic increase in her TPO-Ab levels. In the 35 patients in whom there were decreasing TPO-Ab values, the mean of the first value was 4779 IU/mL with an SD of 4099 IU/mL. The mean decrease after 3 months was 8%, and after 1 year it was 45%.
Five years after the first value, TPO-Ab levels were 1456 +/- 1219 IU/mL, a decrease of 70%.