Background: Cranial capacity is used as a measure of brain volume and has a relationship with age and gender. The purpose of this study was to provide normative data and population-, age- and gender-specific regression formulae related to cranial capacity using head dimensions among the Ukwuani people of Nigeria.
Methods: This study included 605 subjects grouped according to age as follows: 6-12 years, 13-19 years and ≥20 years.