Survey Targets : General households across all 17 metropolitan cities and provinces in South Korea
Target Population and Sampling Frame: Based on the 2016 Population and Housing Census (Registered Census) data from Statistics Korea
General and apartment enumeration districts, excluding island districts, were used to form the sampling population
Sample Size: 7,386 households
The sample was constructed by integrating 2,520 households from the 8th survey (2018) and 4,866 newly recruited households from the 9th survey (2019), resulting in a total sample of 7,386 households
