This study will test the effectiveness of the maintenance care approach. Patients with recurrent or persistent low back pain will be treated in accordance with two different models. The first model is the maintenance care model, meaning that chiropractors will see the patient on a regular basis, regardless symptoms. The other model means that patients should be treated patients only when they themselves experience symptoms bad enough to seek care. After one year, it will be possible to see if there has been any difference between the groups in terms of pain, disability, quality of life and total number of treatments over the study period and to investigate if there is any difference in the cost-effectiveness between the two treatment models.Thus, the study hypothesis is that there is no difference between the two models regarding the number of days with pain.