From: Study of Optimal Replacement of Thyroxine in the Elderly (SORTED) – results from the feasibility randomised controlled trial
Pre-study dose of Levothyroxine
Treatment group
Total randomised
Target TSH range 0.4–4.0 mU/L
Target TSH range 4.1–8.0 mU/L
50 μg daily
5
10
75 μg daily
9
18
100 μg daily
8
7
15
125 or more μg daily
2
3
Total
24
48