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Number of scans and gender information at each age group
| Age group (months) | 1 (0–2) | 4 (3–5) | 7 (6–8) | 10 (9–11) | 13 (12–14) | 16 (15–17) | 19 (18–20) |
|---|---|---|---|---|---|---|---|
| All (32 subjects) | 12 | 21 | 24 | 20 | 22 | 15 | 20 |
| Female (14 subjects) | 4 | 8 | 10 | 8 | 8 | 7 | 9 |
| Male (18 subjects) | 8 | 13 | 14 | 12 | 14 | 8 | 11 |
