同一学童集団における鼻科領域の長期観察成積について

抄録

A thirteen-year period observation of the intranasal findings has been performed in two schools in different environment in an attempt to study the natural changes of the intranasal morphology or spontaneous changes of the intranasal pathology during the normal physical growth.
In comparison between two different schools, one is in urban area and the other is in rural area. A definitely greater incidence of chronic sinusitis has been demonstrated among the pupils in rural school as had been expected.
A comprehensive study has been done as to a variety of possible factors which might have created the high incidence of chronic sinusitis in the rual area, there found a strong evidence to support nutrition is one of the most important factors among other factors studied.
During the survey authors recognized a particular period when there was an abrupt decrease in the incidence of the disease in rural children, and this period noticed to have coincided with the time when the Government started to supply high caloric diets to all pupils all over Japan as one of the health promoting programs.
Further study revealed that there exists repeated remission and exacerbation in the pathology of the nasal and paranasal sinuses in the untouched course. And these changes are often affected by other pathological conditions of nose and nasopharynx for instance deviated septum or adenoid vegetation.
Examination of the ear, pharynx, external nose, subjective symptoms, physical growth, school records and IQ have also been performed simultaneously.