Table 1. Demographics and clinical characteristics of the groups.

		Outdoor Group (n=21) Mean (SD)	Indoor Group (n=25) Mean (SD)	Test statistics a	p value
Age		40 (6.49)	40 (6.19)	0.000	1.000
BMI		23.73 (2.65)	25.44 (3.50)	-1.883	0.066
Sex (females)		11 (52.4%)	11 (44%)	0.321	0.571
Sports level	High Medium Low	11 (52.4%) 7 (33.3%) 3 (14.3%)	7 (28%) 7 (28%) 11 (44%)	5.151	0.076
Education level	Primary High school University	0 3 (14.3%) 18 (85.7%)	2 (8%) 3 (12%) 20 (80%)	1.771	0.413
Perceived Stress		16.90 (5.66)	21.60 (7.81)	-2.357	0.023
MAAS		70.33 (8.50), n= 18	60.88 (15.11), n=21	2.666	0.011
Hair cortisol		61. 68 (27.09)	62.37 (34.45)	-0.070	0.944

^a Independent samples t-tests and chi-square tests were used to asses for between-groups differences. Abbreviations: MAAS, Mindful Attention Awareness Scale.