Table 2.
Analysis of TFT control in 4947 phases of thyroid care in different clinical contexts
| Mean of percentage control of TFT parameters in POTC | ||||||
|---|---|---|---|---|---|---|
| Phase description | Number of POTCs (patients) | Mean POTC length (years) | Mean number of TFTs in POTC | T4 (%) | TSH (%) | T4+ TSH (%) |
| ATD treatment courses | ||||||
| All ATD Rx courses | 2447 | 2.4 | 12.1 | 83 | 49 | 46 |
| All ATD courses as primarya treatment | 2231 | 2.4 | 12.2 | 85 | 50 | 47 |
| First‐course ATD | 1111 | 2.1 | 11.0 | 86 | 52 | 49 |
| Long‐term ATD > 2 years | 607 (528) | 6.1 | 26.8 | 89 | 62 | 58 |
| Long‐term ATD > 5 years | 277 (275) | 9.6 | 38.6 | 89 | 66 | 62 |
| Off Rx | 1546 | 3.4 | 8.5 | 78 | 56 | 54 |
| RAI | ||||||
| Post‐RAI on ATD | 173 | 2.2 | 9.6 | 63 | 32 | 27 |
| Post‐RAI off Rx | 411 | 1.2 | 4.6 | 54 | 23 | 21 |
| Post‐RAI on T4 | 279 | 8.1 | 22.4 | 93 | 60 | 57 |
| Thyroidectomy | ||||||
| Post surgery on T4 | 79 | 7.7 | 21.5 | 91 | 56 | 51 |
| Post surgery off Rx | 67 | 1.3 | 4.4 | 70 | 34 | 30 |
| Post surgery on ATD | 42 | 3.1 | 14.9 | 90 | 47 | 43 |
| Other on T4 | 94 (70) | 5.9 | 15.7 | 87 | 66 | 62 |
Note: The percentage of TFT parameters controlled was calculated for each POTC and the mean of these percentages is presented in the table for each parameter in each phase group.
Abbreviations: ATD, antithyroid drug; POTC, phase of thyroid care; RAI, radioiodine; Rx, treatment; TFT, thyroid function test; TSH, thyroid‐stimulating hormone.
a
Primary treatment signifies any use of ATD before RAI or thyroidectomy.