EFFORT-D study process evaluation: challenges in conducting a trial into the effects of running therapy in patients with major depressive disorder

Table 1 Baseline demographic characteristics of the participants

	N = 48
Age, years (SD)	41.6 (9.1)
Female, %	62.5
Education, %	PS: 5; SecS: 30; LVE/MVE: 28; HS/HVE/acad: 37
Country of origin, %	Netherlands: 79 Turkey/Morocco: 8 Other^a: 13
Civil status, %	M: 55; S: 35; D: 10

PS primary school, SecS secondary school, LVE lower vocational, MVE medium vocational, HS/HVE/acad high school/higher vocational/academic, M married, S single, D divorced
^aInclude Surinam, Aruba, Curacao and Iraq