Table 1: Prevalence of risk-allocated persons per 1,000 in each study.

OriginalRevisitedMiyazakiTokyo

Primary hoptital750783787301
Secondary center235195185494
Tertiary center142126204
Emergency transfer to tertiary center1121
Total1,0001,0001,0001,000

Miyazaki versus Original, ( , Chi square test).
Tokyo versus Original, Revisited, and Miyazaki, ( , Chi square test)