· Original observational studies or reports; primarily cross-sectional and cohort studies
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· If more than one article presenting results from the same study existed then only the most relevant article was included.
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· Studies reporting results specifically on people aged 60 and over
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· No reviews, experimental or clinical trials, or studies with subsample of the original study sample, unless it is still a representative sample and reports new relevant information
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· Representative of the general population (study samples from nursing homes, etc. are accepted)
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· No working populations
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· Only following musculoskeletal (MSK) conditions: 1)Non-specific extremity MSK 2)Back pain (+ divided by region) 3)Osteoarthritis in larger joints of the extremities (i.e. shoulder, elbow, hand/wrist, hip, knee, ankle/foot) 4) Rheumatoid arthritis 5) Osteoporosis
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· No native/aboriginal populations
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· Studies from developed countries only (e.g. countries with “advanced economies” according to IMF)
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· Studies reporting general MSK pain with no specific anatomical area
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· Any type of prevalence/incidence
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· No traumatic related injuries
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· Prevalence/incidence estimates specifically on people aged 60 and over
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· No secondary MSK conditions (i.e. osteoporotic fractures)
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· In studies with results from more than one period/survey, only the latest
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· No combined anatomical sites (e.g. neck + shoulder pain), except for back pain which is usually low back pain.
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· year was included
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· No OA in minor joints (such as in a single phalanx joint, facet joints, etc.)
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· Indirect/weighted/adjusted prevalence estimates.
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