Search strategy for arthritis prevalence studies from African countries.

<p>Search strategy for arthritis prevalence studies from African countries.</p

Risk of bias assessment tool.

<p>Risk of bias assessment tool.</p

Osteoarthritis prevalence (%) and corresponding 95% confidence intervals for urban and rural African settings from population-based studies.

<p>Osteoarthritis prevalence (%) and corresponding 95% confidence intervals for urban and rural African settings from population-based studies.</p

Characteristics of arthritis prevalence studies from African countries published from January 1975 to July 2014.

<p>Characteristics of arthritis prevalence studies from African countries published from January 1975 to July 2014.</p

Forest plot showing the meta-analysis of urban population-based prevalence (%) of rheumatoid arthritis in African countries.

<p>Forest plot showing the meta-analysis of urban population-based prevalence (%) of rheumatoid arthritis in African countries.</p

Flow chart showing the search results for cross-sectional studies on the prevalence of arthritis in Africa from 1975 to July 2014.

<p>Flow chart showing the search results for cross-sectional studies on the prevalence of arthritis in Africa from 1975 to July 2014.</p

Risk of bias assessment of included studies using the Hoy 2012 tool [14].

<p>Risk of bias assessment of included studies using the Hoy 2012 tool [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0133858#pone.0133858.ref014" target="_blank">14</a>].</p

Forest plot showing the meta-analysis of population-based prevalence (%) of osteoarthritis of the hip in rural settings of South Africa.

<p>Forest plot showing the meta-analysis of population-based prevalence (%) of osteoarthritis of the hip in rural settings of South Africa.</p

Summary satisfaction scores for the UK-based study at 1 year (a lower score indicates more satisfaction).

<p>FDP =  Fixed dental prosthesis; RPDP = Removable partial denture/dental prosthesis (34–38).</p

Forest plot showing the meta-analysis of prevalence (%) of rheumatoid arthritis from rural population-based studies in African countries.

<p>Forest plot showing the meta-analysis of prevalence (%) of rheumatoid arthritis from rural population-based studies in African countries.</p