Descriptions of 'Seikanjin' (people from China) and so on attached to Uji showed that the proportion of Immigrants to ancient Japan to the total was 20 percent in Kaya and 30 percent in Uzu, respectively.
ウジに付した「西漢人」などの記載により、賀夜の渡来系の人の割合は全体の2割、宇都は3割を占めたことがわかる。