Table 1 Comparison of measured parameters between males and females in the five ethnic groups
From: Height estimation from head dimensions in South-South Nigeria
Ethnicity | Measure (cm) | Group | Minimum | Maximum | Mean | SD a | t value | p value |
|---|---|---|---|---|---|---|---|---|
Bekwara (N = 186; M = 92, F = 94) | Height | Combined | 145.00 | 178.00 | 164.10 | 7.08 | – | – |
Male | 149.00 | 178.00 | 166.54 | 7.16 | 4.940 | 0.001 | ||
Female | 145.00 | 173.00 | 161.71 | 6.15 | ||||
Head circumference | Combined | 49.80 | 58.00 | 54.40 | 1.74 | – | – | |
Male | 52.00 | 58.00 | 54.97 | 1.69 | 4.657 | 0.001 | ||
Female | 49.80 | 56.70 | 53.85 | 1.60 | ||||
Head length | Combined | 16.40 | 19.60 | 18.31 | 0.76 | – | – | |
Male | 16.80 | 19.60 | 18.61 | 0.72 | 5.678 | 0.001 | ||
Female | 16.40 | 19.00 | 18.02 | 0.68 | ||||
Head width | Combined | 13.20 | 16.60 | 14.90 | 0.77 | – | – | |
Male | 13.20 | 16.60 | 15.06 | 0.74 | 2.732 | 0.001 | ||
Female | 13.30 | 16.60 | 14.75 | 0.77 | ||||
Esan (N = 199; M = 92, F = 107) | Height | Combined | 151.30 | 189.00 | 166.51 | 8.30 | – | – |
Male | 157.00 | 189.00 | 172.15 | 7.35 | 11.462 | 0.001 | ||
Female | 151.30 | 177.40 | 161.67 | 5.56 | ||||
Head circumference | Combined | 49.50 | 59.70 | 54.45 | 2.13 | |||
Male | 51.20 | 59.70 | 55.56 | 1.95 | 7.719 | 0.001 | ||
Female | 49.50 | 57.50 | 53.50 | 1.81 | ||||
Head length | Combined | 16.00 | 20.80 | 18.43 | 0.90 | – | – | |
Male | 16.00 | 20.80 | 18.77 | 0.91 | 5.657 | 0.001 | ||
Female | 16.10 | 19.70 | 18.12 | 0.77 | ||||
Head width | Combined | 13.00 | 18.90 | 14.54 | 0.90 | – | – | |
Male | 13.20 | 18.90 | 14.94 | 1.06 | 6.316 | 0.001 | ||
Female | 13.00 | 15.60 | 14.20 | 0.54 | ||||
Kalabari (N = 180; M = 89, F = 91) | Height | Combined | 151.40 | 188.00 | 167.22 | 6.81 | – | – |
Male | 156.00 | 188.00 | 171.17 | 6.20 | 9.353 | 0.001 | ||
Female | 151.40 | 174.50 | 163.36 | 4.93 | ||||
Head circumference | Combined | 43.60 | 64.58 | 54.82 | 2.09 | – | – | |
Male | 52.50 | 59.90 | 55.52 | 1.46 | 4.700 | 0.001 | ||
Female | 43.60 | 64.58 | 54.13 | 2.37 | ||||
Head length | Combined | 16.80 | 20.60 | 18.77 | 0.68 | |||
Male | 17.00 | 20.60 | 19.01 | 0.65 | 4.867 | 0.001 | ||
Female | 16.80 | 19.80 | 18.54 | 0.64 | ||||
Head width | Combined | 13.10 | 18.50 | 14.79 | 0.64 | |||
Male | 13.10 | 18.50 | 14.87 | 0.74 | 1.826 | 0.069 | ||
Female | 13.60 | 15.60 | 14.70 | 0.52 | ||||
Ogbia (N = 168; M = 86, F = 82) | Height | Combined | 160.00 | 178.00 | 167.47 | 5.32 | – | – |
Male | 160.00 | 178.00 | 169.93 | 4.86 | 6.941 | 0.001 | ||
Female | 160.00 | 175.00 | 164.89 | 4.52 | ||||
Head circumference | Combined | 50.93 | 64.58 | 55.15 | 2.23 | – | – | |
Male | 52.93 | 57.08 | 55.72 | 1.06 | 3.506 | 0.001 | ||
Female | 50.93 | 64.58 | 54.55 | 2.89 | ||||
Head length | Combined | 17.43 | 19.98 | 18.70 | 0.71 | – | – | |
Male | 17.43 | 19.98 | 19.00 | 0.67 | 6.183 | 0.001 | ||
Female | 17.43 | 19.48 | 18.39 | 0.61 | ||||
Head width | Combined | 13.93 | 16.08 | 14.99 | 0.48 | – | – | |
Male | 14.43 | 16.08 | 15.20 | 0.37 | 6.344 | 0.001 | ||
Female | 13.93 | 15.58 | 14.78 | 0.49 | ||||
Urhobo (N = 219; M = 105, F = 114) | Height | Combined | 150.00 | 183.00 | 166.67 | 8.48 | – | – |
Male | 151.00 | 183.00 | 172.28 | 7.41 | 12.129 | 0.001 | ||
Female | 150.00 | 178.20 | 161.51 | 5.67 | ||||
Head circumference | Combined | 43.60 | 60.50 | 54.29 | 2.36 | – | – | |
Male | 52.10 | 60.50 | 55.81 | 1.76 | 11.675 | 0.001 | ||
Female | 43.60 | 57.70 | 52.88 | 1.94 | ||||
Head length | Combined | 16.60 | 20.50 | 18.50 | 0.79 | – | – | |
Male | 17.60 | 20.50 | 18.92 | 0.69 | 8.711 | 0.001 | ||
Female | 16.60 | 19.50 | 18.11 | 0.68 | ||||
Head width | Combined | 13.20 | 16.50 | 14.70 | 0.69 | – | – | |
Male | 13.20 | 16.50 | 15.094 | 0.65 | 9.563 | 0.001 | ||
Female | 13.30 | 15.30 | 14.34 | 0.50 |