iThei mdcdaelcinfd o c elllllrlllll tiThcl elThhlThscd mmshblkdho c dhp
Table 4: Thyroid Events Amsterdam (THEA) Score^4
The THEA score is used to help estimate the risk of developing hypothyroidism with-
in five years in people who have TPO antibodies and relatives of those with thyroid
diseases. Note: Higher antibodies are associated with a greater risk of developing
hypothyroidism.
Characteristic Hypothyroid Event
TSH, mIU/L
<0.4
0.4–2.0
>2.0–4.0
>4.0–5.7
>5.7
0
0
3
6
9
TPO Antibodies, kU/L
≤ 100
>100–1,000
>1,000–10,000
>10,000
0
3
6
9
Family Background
2 Relatives with Graves’
2 Relatives with Hashimoto’s
0
3
Maximum THEA Score 21