Nasal Index of Berom Adults in Kuru District of Jos South, Plateau State. Nigeria - a feature of sexual dimorphism.

The study was conducted to evaluate mean nasal indices of Berom adult males and females in Kuru district of Jos South local government area of Plateau State, Nigeria. This was a cross-sectional study involving 314 adult Berom subjects, of which 199 were males and 115 were females. Direct method of anthropometry was used in data collection, which involved the use of Spreading Callipers and a meter rule in taking nasal measurements, which were morphological nose width and nose height. The data obtained was analyzed using descriptive statistics. The mean morphological nose width for males was 43.0 ± 3.5mm, SEM 0.2 and for females 39.0 ± 3.5mm, SEM 0.3. The mean nose height for males was 49.2 ± 3.6mm, SEM 0.3 and for females 45.7 ± 3.5mm, SEM 0.3. The mean nasal index for males was 87.7 ± 8.4, SEM 0.6 and for females 85.8 ± 9.2, SEM 0.9. The mean nasal indices of the Berom males and females showed that both sexes of the Berom adult population have the platyrrhine nose type. It can be concluded that males had higher statistically significant mean values than females. This confirms sexual dimorphism within the Berom adult population.

Key Words: Morphological nose width, Nose height, Nasal index, Sexual dimorphism, Anthropometry