Outline of the Ninth Longitudinal Survey of Babies in 21st Century

Longitudinal Surveys

The 13th and the 4th Longitudinal Surveys
of Newborns in the 21st Century

Household Statistics Office,
Ministry of Health, Labour and Welfare

Contents

Summary of the 13th and the 4th Longitudinal Surveys of Newborns in the 21st Century (PDF:149KB)

Terms and Definitions (PDF:55KB)