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The lowest, largest, median, and mean thyroid volume measured by ultrasonography according to age in investigated areas.
| Age (year) | Subject (n) | Minimum (mL) | Maximum (mL) | Median (mL) | Mean (mL) ± SD |
|---|---|---|---|---|---|
| 6 | 29 | 0.53 | 3.16 | 1.66 | 1.72 ± 0.57 |
| 7 | 26 | 1.15 | 3.80 | 2.07 | 2.18 ± 0.66 |
| 8 | 23 | 1.46 | 4.51 | 2.45 | 2.52 ± 0.77 |
| 9 | 22 | 1.37 | 3.75 | 2.12 | 2.18 ± 0.62 |
| 10 | 27 | 1.67 | 5.79 | 3.00 | 3.29 ± 0.84 |
| 11 | 19 | 1.90 | 6.1 | 3.08 | 3.20 ± 0.99 |
| 12 | 12 | 2.16 | 5.98 | 4.14 | 3.97 ± 1.12 |
