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. 2023 Oct 5;18:311. doi: 10.1186/s13023-023-02929-6

Table 2.

Differences in head circumference at birth, 1 year, 2 years, and 3 years of age between achondroplasia patients with and without hydrocephalus. The values represent the mean head circumference (cm)

Male (n = 67) Female (n = 58)
HCP
(n = 11)
No HCP
(n = 56)
p -value HCP
(n = 4)
No HCP
(n = 54)
p -value
Birth 38 37.9 1.000 35.5 36.1 1.000
1 year 51.3 49.7 0.230 49.8 49.0 0.373
2 years 53.5 53.0 0.679 51.4 51.9 0.752
3 years 55.4 54.0 0.491 52.3 53.8 0.375

HCP Hydrocephalus