長崎県大村市の一診療所における2016年と2019年のスギ花粉症患者数についての比較検討

抄録

The number of outpatients with cedar pollinosis is known to increase markedly with the dispersal of cedar pollen in the spring in Japan. However, there are no reports yet on the total number of outpatients during the pollen season. In this study, we investigated the total number of outpatients and the number of cedar pollinosis outpatients during the 8-week period from early February to last March at our clinic in 2019, when the cedar pollen dispersal in the air was high and in 2016, when the cedar pollen dispersal in the air was low. In 2019, the cedar pollen dispersal in Omura City was 8,305 counts/cm², and 1,171 cedar pollinosis patients visited the outpatient clinic. The average number of first-time outpatient consultations for cedar pollinosis during the 8-week period was 26.4, and the number of repeat consultations was 18.6. The average number of first outpatient consultations for conditions other than cedar pollinosis was 42.6, and the number of repeat consultations was 39.4. The amount of pollen in the air in the 4th week of February was extremely high at 4,787 counts/cm², the total number of outpatients was 172.4, and the number of first consultations for cedar pollinosis was 74.8.

In 2016, the cedar pollen dispersal in the air in Omura City was 824 counts/cm², and 540 cedar pollinosis patients visited the outpatient clinic. The average number of first-time consultations for cedar pollinosis during the 8-week period was 11.9, and the number of repeat consultations was 7.6. The number of first consultations was 21.2 in the first week of March. The average number of first outpatient consultations for conditions other than cedar pollinosis was 44.0, and the number of repeat consultations was 42.7. We had vaguely recognized that there was a difference in the number of outpatients between years with high pollen dispersal and low pollen dispersal at our clinic, but here, we have revealed that the relationship between the number of cedar pollinosis outpatients and the total number of patients during the pollen season with specific numerical values.