Table 1.

Database search terms

Population	child* OR youth OR adolescen* OR teen* OR babies OR infant* OR toddler* OR preschooler*
Intervention	natur* OR green* OR “green space” OR greenspace OR “natural environment” OR “b lue space” OR “open space” OR tree* OR outdoor* OR outside OR park* OR forest* OR wildlife* OR wilderness OR wood* OR plant* OR garden* OR vegetation OR landscape OR playground
Outcome	“mental health” OR stress OR well-being OR “psychological well-being” OR emotion* OR coping OR anxiety OR anxious OR sleep OR mood OR “mood disorder” OR ADD OR ADHD OR “attention deficit disorder” OR autism OR depression OR schizo* OR tourettes OR “obsessive compulsive disorder” OR bipolar OR “depressive symptoms” OR “psychological distress” OR flourishing OR languishing OR behaviour OR behaviorbehaviour OR resiliency OR self-esteem OR self-confidence