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Table 1 Outcome variables of the JArDinS study

From: Does participating in community gardens promote sustainable lifestyles in urban settings? Design and protocol of the JArDinS study

Variable Level Data collection tools Measurement method
Main outcome measures : lifestyles sustainability
 Health/Social dimension
  Healthiness of household’s food supply Household Food supply diary Share of major food groups, especially F&V in household supply; indicators of nutritional quality: Mean Adequacy Ratio (MAR), Mean Excess Ratio (MER)
  Physical activity: PAEE and total EE Individual Triaxial accelerometer (Actigraph) Automatic activity-recognition (AAR) algorithm with an activity-specific count-based model
  Mental health Individual Online questionnaire Warwick-Edinburgh Mental Well-being Scale (WEMWBS): 14 items on a 5-point Likert scale.
  Social health Individual Online questionnaire UCLA Loneliness Scale (Version 3): 20 items on a 4-point Likert scale.
 Environmental dimension
  Environmental impact of household’s food supply Household Food supply diary GHGE (in g CO2eq), atmospheric acidification (in g SO2eq) and marine eutrophication (in g Neq)
  Environmental impact of household’s food trip Household Food supply diary GHGE (in g CO2eq) of food trip
  Sensitivity to food waste Individual Online questionnaire Sensitivity to food waste scale: 8 items on a 7-point Likert scale
  Connection with nature Individual Online questionnaire Nature Relatedness Scale: 21 items on a 5-point Likert scale
 Economic dimension
  Cost of food supply Household Food supply diary Total food household food expenditure and share of each food group and subgroup
Other measures :
 Sociodemographic variables Household Individual Online questionnaire Composition, income, perceived financial situation age, sex, education, employment of each member
 Away-from-home consumption Individual Online questionnaire 2 questions evaluating the frequency of away-from-home consumption, and food groups mainly consumed away from home.
 Experience in gardening Individual Online questionnaire 2 questions about previous experience in gardening and perceived competence. (ranked as ‘beginner’ ‘intermediate’ and ‘advanced’)