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Table 1 Inclusion/Exclusion Criteria

From: Exercise and manual physiotherapy arthritis research trial (EMPART): a multicentre randomised controlled trial

Inclusion Criteria
1. Subjective complaint of hip pain with either hip internal rotation
< 15° and hip flexion <115° or
2. ≥15° hip internal rotation and pain on hip internal rotation, morning stiffness less than or equal to 60 minutes, age > 50 years.
(American College Rheumatology Clinical criteria for the diagnosis of hip osteoarthritis) [53]
3. Age 40–80 years except in 2 above (age >50 years).
4. Radiological evidence of osteoarthritis (2 of the following 3 criteria): osteophytes, joint space narrowing, ESR<20 mm/hr.
(American College of Rheumatology Criteria for the Classification and Reporting of Osteoarthritis of the Hip) [53].
Exclusion Criteria
1. Previous hip arthroplasty, history of congenital/adolescent hip disease
2. Clinical signs of lumbar spine disease
3. Physiotherapy in previous 6 months
4. Pregnancy
5. Hip fracture
6. Contraindications to exercise therapy (unstable angina/blood pressure, myocardial infarction in previous three months, cardiomyopathy, uncontrolled metabolic disease, recent ECG changes, advanced COPD, third degree heart block)[54]
7. On waiting list for joint replacement within the next 27 weeks
8. Rheumatic diseases e.g. Rheumatoid Arthritis, Ankylosing Spondylitis, etc.
9. Intra-articular hip corticosteroid injection in previous 30 days
10. Insufficient English language to complete questionnaires