Epidemiological Studies on the Human Facial Skeletal Components, especially on That of the External Nose

Abstract

Stature, body weight, maximum glabello-occipital length, maximum cephalic breadth, anatomical face length, face breadth, height of nose, length of nasal bone and nasal breadth of 889 healthy men of the age 18 to 29 years at a air force base camp are measured in order to carry out an epidemiological research on the human facial cranial components, especially on external nose forms. These data are compared and discussed in the epidemiological methods. The results follow : (1) Stature, maximum glabello-occipital length, maximum cephalic breadth, cephalic index, height of nose, length of nasal bone and relative height of nose are significantly higher in the men brought up in urban than in rural districts, but maximum glabello-occipital length and nasal index are significantly higher in the latter than in the former. (2) Cephalic index, facial index of Kollman, height of nose and relative height of nose are: significantly higher in the sons of non-farmers than that of farmers. Rohrer's index, maximum glabello-occipital length, face breadth and nasal index are significantly higher in the latter than in the former. (3) Maximum glabello-occipital length, anatomical face length, height of nose, length of nasal bone, relative height of nose and relative length of nasal bone are significantly higher in the men come from the northern region than from the western y region of Japan. Cephalic index and nasal index are significantly higher in the latter than in the former. Maximum glabello-occipital length and relative height of nose are significantly higher in the men come from the northern region than in the men from the central of Japan, and the differences between the men from the central and the western region are not significant.