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Comparison of median and P97 (97th percentile) of thyroid volumes measured by ultrasonography according to age (sexes combined) with the 2003 WHO/ICCIDD* international reference values
| Age | Total | Boys | Girls | |||
|---|---|---|---|---|---|---|
| Median | P97 | Median* | P97* | Median* | P97* | |
| 6 | 1.9 | 4.5 | 1.60 | 2.91 | 1.57 | 2.84 |
| 7 | 2.0 | 4.8 | 1.80 | 3.29 | 1.81 | 3.26 |
| 8 | 2.3 | 5.5 | 2.03 | 3.71 | 2.08 | 3.76 |
| 9 | 2.7 | 6.2 | 2.30 | 4.19 | 2.40 | 4.32 |
| 10 | 3.3 | 7.0 | 2.59 | 4.73 | 2.76 | 4.98 |
| 11 | 3.5 | 7.8 | 2.92 | 5.34 | 3.17 | 5.73 |
| 12 | 4.1 | 8.6 | 3.30 | 6.03 | 3.65 | 6.59 |
