Table 4.
Clinical data of the ablation results for two types of low iodine diets
| All (n = 161) | Less strict LID (n = 71) | Very strict LID (n = 90) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Successful | Unsuccessful | p | Successful | Unsuccessful | p | Successful | Unsuccessful | p | |
| Age (years) | 47.9 ± 10.6 | 47.6 ± 13.2 | 0.907 | 45.9 ± 9.8 | 41.6 ± 11.3 | 0.160 | 49.5 ± 11.0 | 51.5 ± 13.1 | 0.502 |
| Males/females (n) | 19/106 | 9/27 | 0.172 | 10/47 | 2/12 | 0.771 | 9/59 | 7/15 | 0.048 |
| Remnant uptake | |||||||||
| Grade I | 42 | 16 | 0.467 | 19 | 7 | 0.493 | 23 | 9 | 0.756 |
| Grade II | 34 | 9 | 13 | 2 | 21 | 7 | |||
| Grade III | 49 | 11 | 25 | 5 | 24 | 6 | |||
| Pre-ablation TFT | |||||||||
| TSH | 74.8 ± 24.8 | 72.4 ± 24.8 | 0.474 | 70.8 ± 28.4 | 66.6 ± 23.2 | 0.610 | 78.2 ± 21.0 | 74.6 ± 26.1 | 0.505 |
| Tg | 3.1 ± 4.6 | 22.5 ± 40.8 | <0.001 | 3.0 ± 4.4 | 23.3 ± 44.4 | 0.001 | 3.3 ± 4.9 | 21.9 ± 39.3 | <0.001 |
| Anti-Tg | 20.6 ± 30.6 | 21.1 ± 31.5 | 0.929 | 18.0 ± 26.4 | 17.2 ± 33.0 | 0.926 | 22.7 ± 33.6 | 23.6 ± 31.1 | 0.917 |
| Tumor size (cm) | 1.2 ± 0.8 | 1.8 ± 1.0 | <0.001 | 1.2 ± 0.8 | 1.8 ± 1.2 | 0.060 | 1.1 ± 0.8 | 1.8 ± 0.9 | 0.001 |
| T stage | |||||||||
| T1 | 77 | 17 | 0.401 | 38 | 8 | 0.684 | 39 | 9 | 0.347 |
| T2 | 5 | 1 | 3 | 1 | 2 | 0 | |||
| T3 | 30 | 13 | 9 | 4 | 21 | 9 | |||
| T4 | 13 | 5 | 7 | 1 | 6 | 4 | |||
| Capsular invasion, negative/positive (n) | 45/80 | 7/29 | 0.061 | 19/38 | 4/10 | 0.733 | 26/42 | 3/19 | 0.032 |
| Extrathyroidal extension, negative/positive (n) | 84/41 | 19/17 | 0.112 | 41/16 | 10/4 | 0.970 | 43/25 | 9/13 | 0.065 |
| Home-cooked meals only, no/yes (n) | 44/81 | 19/17 | 0.057 | 17/40 | 8/6 | 0.055 | 27/41 | 11/11 | 0.395 |
LID Low iodine diet, TFT thyroid function test