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Table 1 Main content of the questionnaire

From: Influence of urban green open space on residents’ physical activity in China

Variable Social ecology theory Evaluation elements Description Variable classification
Dependent variables   Physical Activity time Time range: below 30 min to 4 h and above Sequencing the dependent variable
  Physical Activity frequency Frequency range: every year, month, week, day Sequencing the dependent variable
Independent variables Individual factors Age Adults Continuous variable
Gender Male and female Dummy variable (1 = male, 0 = female)
Wage 2000 RMB to 20,000 RMB or more Continuous variable
Interpersonal factors Companion Family, classmates and friends, colleagues, a single person, team, relatives, others Dummy variable (1 = family, 2 = classmates or friends, 3 = colleagues, 4 = single, 5 = team, 6 = relatives, 7 = others)
Community factors Accessibility Public transportation is convenient, distance to settlements, time and money spent, entrances and exits set Factor variable
Safety Barrier-free design, related logo, night lighting, security patrols Factor variable
Natural factors Space environment Air noise, cleanliness, vegetation coverage, environmental compatibility Factor variable
Landscape quality Rich vegetation, rich landscape changes, good natural scenery Factor variable
Built environment factors Entertainment facilities Race track, swimming pool, chess room, stone road, area for square dance or kung fu, Tai Chi, roller skating field, sports equipment and venue Dummy variable (1 = yes, 0 = none)
The area of green open space Range: 0–1250 m2 Continuous variable
Size of open space Range: 1.88–4666.67 ha Continuous variable
Infrastructure Toilets, shelters, tables, and chairs, facilities, and convenience stores Dummy variable