Table 4. Head Circumference in the follow-up study.
| Pt | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 7 | 8 | 9 | |
| MC onset | Birth | 5m | 4 | Birth | 2 | Birth | 5 | 2 | 5m | ||
| HC-IP(m) | 0–12 | 5–12 | 4–12 | 0–12 | 2–10 | 0–12 | 5–12 | 4–7 | 0–12 | ||
| HC/cm(Age) | 55(1y) | 54.5(5y) | 55.5(3y3m) | 57.5(3y7m) | 50.5(10m) | 52(1y9m) | 38(2m) | 53.2(12m) | 56(1y5m) | 41(3m9d) | |
| 57(13y) | 57(8y3m) | 60(10y1m) | 53(4y4m) | 56.8(5y7m) | 42(3m) | 55.5(18m) | 61(3y) | 52.5(1y4m) | |||
| 57(10y7m) | 57(5y9m) | 43.6(4m) | 56(2y) | 53(3y) | |||||||
| 47(5m) | 57(3y2m) | ||||||||||
| 51(6m) | 60(4y6m) | ||||||||||
| Pt | 10 | 11 | 12 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 18 |
| MC onset | 5m | Birth | 2m | Birth | Birth | 2m | 5m | Birth | 4m | ||
| HC-IP(m) | 0–12 | 3–7 | 0–12 | 0–7 | 0–12 | 2–9 | 5–9 | 0–12 | 0–12 | ||
| HC/cm(Age) | 41(3m9) | 49.5(7m) | 38(1m) | 52(1y) | 56 (1y7m) | 52.5 (11m) | 48(7m) | 50 (9m) | 53 (1y) | 44 (4m) | 52 (2y3m) |
| 54(3y) | 51.5 (11m) | 41.8 (3m) | 55 (1y8m) | 57 (2y1m) | 60 (3y6m) | 50(9m) | 53(1y3m) | 47 (5m) | 53 (3y6m) | ||
| 52 (1y4m) | 46.5 (6m) | 56(2y) | 58 (4y1m) | 57(1y11m) | 57.5(6y6m) | 49.5(8m) | 54 (4y1m) | ||||
| 50(8m) | 56 (2y1m) | 57(2y5m) | 50 (9m) | ||||||||
| Pt | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 26 | 27 | 28 |
| MC onset | 4m | Birth | 8m | 4m | Birth | 5m | 5m | Birth | Birth | Birth | |
| HC-IP(m) | 3–12 | 0–12 | 8–11 | 4–12 | 3–30 | 5–12 | 5–12 | 3–9 | 0–12 | 0–12 | |
| HC/cm(Age) | 53(1y10) | 52(10m) | 57(7y) | 54(9m) | 54(13m) | 53(8m) | 55(1y) | 54.5(9m) | 57.5(3y8m) | 57(11y4m) | 61(9y) |
| 55(5y) | 56(5y3m) | 54.5(1y4m) | 58(6y) | ||||||||
| 57(2y6m) | 58(7y2m) | ||||||||||
| 57(3y5m) | |||||||||||
Abbreviations: MC, macrocephaly; HC-IP, head circumference increasing period; HC, head circumference; y, year; m, month