Table 1

Demographic composition of the patient collective

Family Status



Single
4.2%

Single living with partner
2.1%

Married living with partner
68.8%

Married living apart
4.2 %

Divorced
4.2%

Widowed
2.1%

No details
14.4%
Education



Primary school
39.6%

Secondary school
25%

Technical school
6.3%

High school graduation
6.3%

Other
10.4%

No details
18.7%
Professional activities



Working
20.8%

0 – 1 no longer employed
6.3%

1 – 5 no longer employed
25%

>10 no longer employed
16.7%

No details
31.2%
Severity of physical activities of those still employed



Multiple layered and heavy
18.8%

Multiple layered/middle heavy
20.8%

Multiple layered /light
6.3%

Shift work/Accord
2.1%

Part time
12.5%

Missing details
39.5%

Nöller and Sprott Journal of Negative Results in BioMedicine 2003 2:4   doi:10.1186/1477-5751-2-4

Open Data