Table 2. Thyroid nodule volume (mL) in radiofrequency ablation group.
| Baseline | 6 months | 12 months | |||
|---|---|---|---|---|---|
| Whole group (n = 48) | |||||
| TN vol. | 23.5 ± 18.6 | 8.5 ± 9.0*** | 7.6 ± 8.7*** | ||
| TN vol. variation (%) from baseline TN vol. variation (%) from 6 months | -66.8 ± 13.6 | -71.1 ± 14.3 -13.7 ± 17.1 | |||
| Small (n = 12) | |||||
| TN vol. | 7.4 ± 2.6 | 2.0 ± 1.1*** | 1.6 ± 0.9* | ||
| TN vol. variation (%) from baseline TN vol. variation (%) from 6 months | -73.5 ± 10.8 | -78.7 ± 1 -18.7 ± 18.8 | |||
| Medium (n = 24) | |||||
| TN vol. | 18.3 ± 42 | 6.2 ± 2.6*** | 5.6 ± 2.7*** | ||
| TN vol. variation (%) from baseline TN vol. variation (%) from 6 months | -65.8 ± 13.7 | -69.0 ± 14.4 -10.8 ± 13.4 | |||
| Large (n = 12) | |||||
| TN vol. | 49.8 ± 18.4 | 19.7 ± 11.6*** | 17.5 ± 12.3* | ||
| TN vol. variation (%) from baseline TN vol. variation (%) from 6 months | -62.0 ± 14.3 | -67.7 ± 15.9 -14.7 ± 21.8 | |||
Differences are considered between baseline and 6 months and between 6 and 12 months.
* p ≤ 0.05; *** p ≤ 0.001.