抄録
In order to solve public health problems, it is useful to show dynamic complexity among variables using causal loop diagram that is a qualitative model often used in system dynamics. However, a variety of variables for a problem depends on knowledge and experiences of people involved. We are exhaustively exploring causal relationships among all variables in the System of Social and Demographic Statistics (SSDS) by prefecture in 2010, 2015 and 2020 employing a method called Comparison of Ordered PAnel Data (COPAD), and will show a part of the results.