| Dependent variables | Visit to urban park and green area | Participation in visit to urban parks and green areas | Non-participation=0,Participation=1 |
| Outdoor activities in forest and mountain | Participation in outdoor activities in forests and mountains | Non-participation=0,Participation=1 |
| Trip to mountain village | Participation in trips to mountain villages | Non-participation=0,Participation=1 |
| Moderator variables | Period | Period by the COVID-19 outbreak | Before the COVID19=0,After the COVID19=1 |
| Independent variables | Age | Age of respondent | 20s (19~29)=1,30s (30~39)=2,40s (40~49)=3,50s (50~59)=4,60s (60~69)=5 |
| Gender | Gender of respondent | Male=1, female=0 |
| Children | Characteristics of respondent’s family member | Without children=0,With children=1 |
| Job type | Job type of respondent | Non-office job=0,Office job=1 |
| Education | Education level of respondent | Not enrolled in university=1,Enrolled in or graduated from university=2,Enrolled in or graduated from graduate school=3 |
| Income | Average monthly income level of respondent’s household | Under 2 million KRW=1,2~4 million KRW=2,4~6 million KRW=3,6~8 million KRW=4,More than 8 million KRW=5 |
| Residential area | Residential area of respondent | Outside Seoul metropolitan area=0,In Seoul metropolitan area=1 |
| Importance of forest | Level of importance of forest perceived by respondent | Not important=1,Slightly important=2,Important=3,Very important=4 |