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Table 5 Overall level of evidence for prognostic factors with no association with outcome

From: Pain intensity, neck pain and longer duration of complaints predict poorer outcome in patients with shoulder pain – a systematic review

Prognostic factor assessed at baseline Outcome QS > 60 % QS ≤ 60 % Level of evidence
Primary care     
Restricted range of motion [14, 15, 22, 23] Poorer 1/1 Strong
No association 3/3
Younger age [5, 14, 15, 18, 22] Better 1/5 Strong
No association 4/5
Comorbid psychological factors [5, 14, 15, 22, 35] No association 5/5 Strong
Education [15, 35] No association 2/2 Strong
Comorbidity [11, 27] No association 2/2 Strong
Muscle strength [14, 35] No association 2/2 Strong
Dominance [5, 15, 18] No association 3/3 Strong
Medication use [14, 18] No association 2/2 Strong
Secondary care     
Gender [11, 17, 2426, 28, 36] No association 2/2 5/5 Strong
Older age [11, 17, 2428, 36] Poorer 1/6 Strong
No association 2/2 5/6
Previous physiotherapy [11, 17] No association 2/2 Strong
GP treatment (medication) [11, 17] No association 2/2 Strong
Psychological factors [11, 17] No association 2/2 Strong
ROM [11, 24] No association 1/1 1/1 Moderate
Occupational setting     
BMI [12, 13, 16, 32] No association 1/1 3/3 Strong
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