Table 3.

Descriptive demographic characteristics of the study population (N=955). SD: standard deviation; PhD: Doctor of Philosophy.

Variable		Total
Age, mean in years (SD)		38.0 (13.6)
Gender, n (%)a
	Female	470 (49.2)
	Male	245 (25.6)
	Invalid responses	4 (0.4)
Highest completed educational level, n (%)a
	Elementary school or secondary education	250 (26.2)
	Vocational degree	220 (23.0)
	Polytechnic education or university of applied science	201 (21.0)
	Scientific degree (Master’s and PhD)	48 (5.0)

^aData missing of N=236.