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Table 1 Eligibility criteria for the feasibility trial

From: Feasibility cluster randomised controlled trial evaluating a theory-driven group-based complex intervention versus usual physiotherapy to support self-management of osteoarthritis and low back pain (SOLAS)

Inclusion criteria

Diagnosis

Osteoarthritis

NICE [4] working diagnosis of osteoarthritis of the hip, knee or lumbar spine defined as:

• Age 45 years old or over, and

• Activity related joint pain and

• Either no morning joint-related stiffness or morning stiffness that lasts no longer than 30 min

Non-specific low back pain

Aged ≥ 30 years old with non-specific low back pain of mechanical origin with or without radiation to the lower limb

Symptom duration

Chronic (≥ 3 months)

English language

Be able to read, understand and speak English without assistance

Contact status

Access to a telephone for screening and assessment

Availability

Available to attend a 6-week start-stop group class of 1.5 h per week

Exclusion criteria

 Pathology

Suspected or confirmed serious spinal pathology (fracture, metastatic, inflammatory or infective diseases of the spine, cauda equina syndrome/widespread neurological disorder)

Nerve root compromise (2 of strength, reflex or sensation affected for same nerve root)

Lower limb arthroplasty

 Past medical history

Spinal surgery or history of systemic / inflammatory disease

 Current medical status

Scheduled for major surgery during treatment

 Contraindications

Unstable angina / uncontrolled cardiac dysrhythmias / severe aortic stenosis / acute systemic infection accompanied by fever

 Other

No confounding conditions, such as a neurological disorder, intellectual disorder or unstable psychiatric condition.

Bladder or bowel incontinence

People who are assessed to be at high risk of falls

Physiotherapy in the preceding 6 months

Unable or unwilling to attend

Ongoing litigation related to the pain condition