Shift work and cognitive impairment in later life – results of a cross-sectional pilot study testing the feasibility of a large-scale epidemiologic investigation

Table 1 Socio-demographic characteristics of questionnaire respondents (N = 75)

	Missing	Mean	SD^a	Min	Max
Age (in years)	0	61.6	4.2	56	74
	Missing	N		%
Gender	0
Female		65		86.7
Place of birth	17
Germany		50		66.7
Family status	0
Single		15		20.0
Married/partnership		42		56.0
Divorced		10		13.3
Widowed		8		10.7
Schooling	0
No degree		2		2.7
Secondary modern school		20		26.7
High school diploma		39		52.0
University of applied sciences entrance qualification		3		4.0
A level/Advanced Vocational Certificate of Education		6		8.0
University degree		4		5.3
Other		1		1.3
Occupational training	0
No degree		2		2.7
Vocational/apprenticeship		25		33.3
Professional school		39		52.0
University degree		6		8.0
Other		3		4.0
Current occupation	0
Full-time		30		40.0
Part-time		21		28.0
Pensioner		22		29.3
Job-seeking		2		2.7
Smoking	0
Never smoked		40		53.3
Previous smoker		21		28.0
Current smoker		14		18.7
Body-Mass-Index	3
≥ 25 kg/m²		36		48.0

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