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Table 1 Patient eligibility criteria

From: A new interdisciplinary treatment strategy versus usual medical care for the treatment of subacromial impingement syndrome: a randomized controlled trial

Inclusion criteria:
   1. Pain upon abduction of the shoulder with painful arch;
   2. Shoulder pain as a recurrence of an episode with a maximum duration of 12 months in which a partial or good response is achieved with subacromial corticosteroid injection(s);
   3. A maximum duration of six months of shoulder problems prior to the first subacromial injection, possibly treated with non-steroidal anti-inflammatory drugs (NSAIDs) and/or physiotherapy;
   4. No shoulder problems for at least two years prior to the current episode of shoulder pain;
   5. Men and women, aged between 30 and 60 years;
   6. Being able to give an informed consent.
Exclusion criteria:
   1. Shoulder girdle pain;
   2. Shoulder pain not based on pain upon abduction of the shoulder;
   3. Signs of cervical root compression;
   4. Bilateral shoulder pain;
   5. Secondary subacromial impingement;
   6. Presence of specific rheumatic diseases;
   7. History of severe trauma of the shoulder within the previous two years (e.g. fracture, luxation);
   8. History and/or clinical symptoms of a large rotator cuff tear;
   9. Previous surgery of the affected shoulder;
   10. Extrinsic causes of shoulder pain;
   11. Presence of dementia or other psychiatric disorders;
   12. Not being able to fill in questionnaires in Dutch.