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Accurate information on the prevalence and causes of musculoskeletal impairment (MSI) is lacking in low income countries. We present a new survey methodology that is based on sound epidemiological principles and is linked to the World Health Organisation's International Classification of Functioning.
Clusters were selected with probability proportionate to size. Households were selected within clusters through compact segment sampling. 105 clusters of 80 people (all ages) were included. All participants were screened for MSI by a physiotherapist and medical assistant. Possible cases plus a random sample of 10% of non-MSI cases were examined further to ascertain diagnosis, aetiology, quality of life, and treatment needs.
Atijosan O, Rischewski D, Simms V, Kuper H, Linganwa B, Nuhi A, et al. (2008) A National Survey of Musculoskeletal Impairment in Rwanda: Prevalence, Causes and Service Implications. PLoS ONE 3(7): e2851. doi:10.1371/journal.pone.0002851