Rhinometry: spectrum of nasal profile among Nigerian Africans

Abstract

Nasal parameters measurements are useful in anthropology to distinguish people into racial and ethnic groups. Materials and methods:A cross-sectional survey among Nigerians aged 18 to 70 years of Nigerian parentage randomly selected at the ENT Clinic of the University of Ilorin teaching hospital (U.I.T.H.), Ilorin, Nigeria without gender discrimination had measurement of their nasal parameters done using a sliding caliper: Nasal height, width, tip protrusion, alar thickness, nasal septal thickness and nares diameter.Results: 105 subjects were seen, the age range 18 to 70 years (mean of 28.63 + 13.06 years). There was 58 males and 47 females with a male/female ratio of 1.2:1. The mean nasal width/height (Nasal index -NI) was 90.7 in males and 88.2 in females. Males had a higher NI compared to female (p < 0.03). The commonest type of nasal variability is Type A (70.5%), Platyrrhine nose, Type B (26.7%) especially in females (mesorrhine) and Type C (leptorrhine) (2.8%). Conclusions:There is significant association between the sex of an individual and type of Nose. Platyrrhine nose, among males and mesorrhine among females, only 2.8% being leptorrhine. The nasal indices were higher in males than in females. Braz J Otorhinolaryngol. 2011;77(5):589-93. ORIGINAL ARTICLE BJORL

Nasal Anthropometry of Adult &lt;i&gt;Tiv&lt;/i&gt; and &lt;i&gt;Idoma&lt;/i&gt; Tribes of Nigeria

“…It was, therefore, observed that the predominant nasal type among both ethnic groups, based on NI, was platyrrhine or broad nose. The result of the present study agreed with those from other studies about Nigerian ethnic groups having platyrrine nose (Oladipo et al, 2010;Omotoso et al, 2011;Jimoh et al, 2011;Oludiran et al, 2012;Eliakim-Ikechukwu et al, 2012Ogah et al, 2014;Oria et al, 2018). The studies cited above were conducted on one or the other of Omoku, Bini, Ibo, Ibibio, Yakurr, Yoruba, Idoma and Fulani ethnic groups of Nigeria.…”

“…Anthropologists have used nasal indices in many ethnic groups for categorization and gender discrimination (Anas, 2010;Jimoh et al, 2011;Omotoso et al, 2011;Oludiran et al 2012;Eliakim-Ikechukwu et al, 2012;Eliakim-Ikechukwu et al, 2013;Ogah et al, 2014;Oria et al, 2018). Extensive literature search revealed paucity of published studies on facial anthropometry of Tiv and Idoma people of Benue State.…”

An Anthropometric Study of some Basic Nasal Parameters of Three Major Ethnic Groups in Kogi State, Nigeria

“…The platyrrhine nose type is characterized by a very prominent ala lobule with a full or rounded nasal tip. The mesorrhine nose type is characterized by a less prominent lobule with a more defined nasal tip and the leptorrhine type of nose is characterized by least prominent ala lobule with a well defined nasal tip [15].…”

The Nasal Index of South Indian Skulls.

“…Australians as well as the Bantus and Bushmen of African were platyrrhine, having broad nose with a nasal index of 85.0 and above 26. Similar to that of the general Western Europeans, a past study has shown that the nasal index of Germans are an average of 71.0 and below, which is leptorrhines [10]. Table 2 shows the comparison of nasal indices that has been acquired in the study with previously studied nasal indices of other populations.…”