Please select the eligibility criteria that correspond to the clinical trial below.
Title: N/A
Brief Summary: The purpose of this study is to compare a specific fear-reducing information with symptom-based exercise


Options:
A: Inclusion Criteria:

* Low back pain as the main symptom for at least one year.
* Structured physiotherapy or chiropractic treatment for at least 6 months without (significant) effect.
* Oswestry Disability Index score of 30% points or more
* Degenerative changes in the intervertebral disc in one or both of the two lowest levels of the lumbar spine (L4/L5 and/or L5/S1). (Degenerative changes are classified based on MR findings according to the following criteria: At least 40% reduction of disc height, Modic changes type I and/or II, "High intensity zone" in the disc, Morphological changes classified as changes in signal intensity in the disc. To classify the disc as degenerative the first criteria alone or at least two of the other criteria must be present. The MR series are evaluated by two independent observers.)

Exclusion Criteria:

* Generalized chronic pain syndrome (widespread myofascial pain)
* Degeneration established in more than two levels. To be classified as a normal disc, the disc height must not be reduced more than 40% and all other criteria of degenerative disc disease aforementioned must be absent. The classification of a normal disc is performed by two independent observers. If disagreement, the pictures will be classified by a third observer and the outcome decided by simple majority.
* Symptoms of spinal stenosis
* Disc protrusion or recess stenosis with nerve root affection
* Spondylolysis
* Isthmic spondylolisthesis
* Arthritis
* Former fracture of L1 - S1
* Ongoing psychiatric or somatic disease that excludes either one or both treatment alternatives
* Does not understand Norwegian language, spoken or in writing
* Drug abuse
* Osteoporosis
* Congenital or acquired deformity
B: Inclusion Criteria:

* Daily LBP, dominating over possible pain in leg or other joints/muscles
* Pain og \> 4 (scale 0-10) for more than 4 months

Exclusion Criteria:

* Cancer, inflammatory disease, previous back surgery, pregnancy
C: Inclusion Criteria:

1. Low Back Pain lasting more than 12 weeks with or with out pain radiating into the leg(s)
2. Age 18 - 60 years

Exclusion Criteria:

1. Serious spinal pathology

   1. Malignancy
   2. Osteoporosis,
   3. Fresh vertebral fracture
   4. Newly operation on the back
   5. Stenosis of the lumbar spine
   6. Unstable spondylolistesis
   7. Infections in the back
2. Neurological dysfunction of the thoracic or abdominal muscles
3. Pregnancy/breastfeeding
4. Mental illness
5. Health conditions which prohibit intensive training.
6. Languish problems/ dyslexia
D: Inclusion Criteria:

* Patients currently receiving primary care at Portland VAMC
* Diagnosed musculoskeletal chronic pain condition lasting at least 3 months
* Currently experiencing moderate to severe symptoms as per screening
* Willingness to complete 6 and 12 month interviews
* Regular access to a telephone

Exclusion Criteria:

* Dementia or cognitive disturbance
* Diagnoses of fibromyalgia, chronic fatigue or somatization disorder Terminal illness
* Designated guardian
* Drug-seeking behavior flag in medical record

Answer: B