. 2022 Mar 21;11(6):1731. doi: 10.3390/jcm11061731

Table 3.

Study characteristics (empirical findings of the studies).

Author	Description	Psychological Outcome	Psychological Outcome	Walking			Control			Pre walking
Author	Description	Psychological Outcome	Psychological Outcome	Mean	SD	Total	Mean	SD	Total	Mean	SD	Total
Janeczko et al. [13]	Green suburbs	Depression	POMS	0.47	0.6	22	0.58	0.45	23	0.62	0.48	22
	Coniferous forest	Depression	POMS	0.55	1.03	17				0.84	0.89	17
	Deciduous forest	Depression	POMS	0.32	0.31	13				0.57	0.43	13
	Green suburbs	Anxiety	POMS	0.58	0.51	22	0.78	0.61	23	0.99	0.73	22
	Coniferous forest	Anxiety	POMS	0.44	0.59	17				0.94	0.67	17
	Deciduous forest	Anxiety	POMS	0.37	0.29	13				0.62	0.48	13
Song et al. [11]	Experimental and control groups	Depression	POMS	40.6	4	585	41.7	5.4	585	-	-	-
Song et al. [11]	Experimental and control groups	Anxiety	POMS	36.1	5.4	585	41.3	7.7	585	-	-	-
Korpela et al. [9]	After 8 weeks,	Depression	BDI	23.5	13.4	13	-	-	-	29.2	14	13
Korpela et al. [9]	3-month follow-up	Depression	BDI	20.3	13.6	13	-	-	-	29.2	14	13
Marselle et al. [10]	Group walk in nature	Depression	A 10-item major depressive inventory	−0.08	0.02	1506	-	-	-	0.48	0.02	1506
Iwata et al. [21]	Pre-walk and post-walk	Depression	BDI	14.93	-	15	-	-	-	22.86	-	15
Gotink et al. [14]	Pre-walk and postwalk (time 1)	Depression	DASS-21	6.1	3.81	29	-	-	-	6.7	3.81	29
	Pre-walk and post-walk (time 2)	Depression	DASS-21	5.7	3.81	29	-	-	-
	Pre-walk and post-walk (time 3)	Depression	DASS-21	3.9	3.81	29	-	-	-
	Pre-walk and post-walk (time 1)	Anxiety	DASS-21	5.1	2.5	29	-	-	-	5.1	2.50	29
	Pre-walk and post-walk (time 2)	Anxiety	DASS-21	4.6	2.5	29	-	-	-
	Pre-walk and post-walk (time 3)	Anxiety	DASS-21	2.9	2.4	29	-	-	-
Shin et al. [12]	Pre-walk and post-walk	Anxiety	STAI	34.6	8.1	34	-	-	-	36.3	9.3	34