Table 1 Patient characteristics
Characteristic | No. | % |
|---|---|---|
Gender | ||
Male | 21 | 23.1 |
Female | 70 | 76.9 |
Previous thyroid treatment | ||
None | 24 | 26.4 |
Thyroidectomy | 14 | 15.4 |
RAI | 52 | 57.1 |
Both | 1 | 1.1 |
Hyperthyroid medication use | ||
Yes | 17 | 18.7 |
No | 74 | 81.3 |
Thyroid disease | ||
Hyperthyroid | 83 | 91.2 |
Hypothyroid | 7 | 7.7 |
Euthyroid | 1 | 1.1 |
Duration of symptoms prior to RT | ||
≤ 6 months | 36 | 39.6 |
6 – 18 months | 38 | 41.8 |
> 18 months | 17 | 18.7 |
Prior steroid use | ||
Yes | 44 | 48.4 |
No | 47 | 51.6 |
Steroid use at initiation of RT | ||
Yes | 31 | 34.1 |
No | 60 | 65.9 |
Response to prior steroids | ||
None | 12 | 13.2 |
Partial | 32 | 35.2 |
Complete | 0 | 0 |
Smoking at initiation of RT | ||
Yes | 27 | 29.7 |
No | 64 | 70.3 |
Disease severity | ||
Mild | 28 | 30.8 |
Moderate | 56 | 61.5 |
Severe | 7 | 7.7 |
Median age | 55 years (range 29 – 84) | |