Table 1.

Inclusion- and exclusion criteria

Inclusion criteria	All patients with chronic* low back pain** as a primary or secondary consulting reason in general practice.
	*”chronic” was defined as pain during most days in the last three months.
	**”low back pain” means pain in the back area under the costal arch, but over the bottom fold (with or without pain radiation).
Exclusion criteria	- patients under 18 years
	- pregnant women
	- persons with insufficient fluency of speaking German language or dementia (subjective impressed by doctor)