1981 Volume 74 Issue 9special Pages 2082-2095
The authors reported on the prevalence rate of the chronic paranasal sinusitis of 10201 school children in the city of Hiroshima and in Yoshida town (the rural area of Hiroshima Prefecture) from the 1st April to the 10th July 1980. The chronic paranasal sinusitis was diagnosed by the local findings of the middle nasal meatus and its adjacent areas. The following results were obtained.
1. The total prevalence rate of this period was 2.79%.
2. The prevalence rate of the male children was more than that of the female in both areas. The rate was 3.59% to 1.96%.
3. The elder were children, the less were the rates in both areas.
4. The more children in Yoshida town suffered from the chronic paranasal sinusitis (the rate: 6.81%) than in Hiroshima city (the rate: 2.19%).
The factors of natural conditions and nutrition influenced the prevalence rate in our study.
The main factors, however, were thought to be the difference of the mean temperaature and nutrition between two areas.
