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Subgroup analysis was by continent, age, sex, and country income level. Random\u2010effects model was used. Between\u2010study heterogeneity was assessed using the <jats:italic>I<jats:sup>2<\/jats:sup><\/jats:italic>\u00a0statistic.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The global incidence was 0.0419 per 1000 person\u2010years (95% CI: 0.0414\u20130.0424). The incidence was 0.047 per 1000 person\u2010years (95% CI: 0.0462\u20130.0477), 0.0419 per 1000 person\u2010years (95% CI: 0.0411\u20130.0426), 0.0072 per 1000 person\u2010years (95% CI: 0.0067\u20130.0078), 0.003 per 1000 person\u2010years (95% CI: 0.0023\u20130.0039) in North America, Europe, Asia, and Africa, respectively; 0.0202 per 1000 person\u2010years (95% CI: 0.0196\u20130.0208) and 0.0181 per 1000 person\u2010years (95% CI: 0.0175\u20130.0188) females and males; 0.001 per 1000 person\u2010years (95% CI: 0.001\u20130.001), 0.002 per 1000 person\u2010years (95% CI: 0.001\u20130.002), 0.004 per 1000 person\u2010years (95% CI: 0.004\u20130.004); 0.007 per 1000 person\u2010years (95% CI: 0.007\u20130.008), 0.011 per 1000 person\u2010years (95% CI: 0.011\u20130.012), 0.017 per 1000 person\u2010years (95% CI: 0.015\u20130.018) for age &lt;50, 50\u201359, 60\u201369, 70\u201379, 80\u201389, and \u226590\u00a0years; 0.0038 per 1000 person\u2010years (95% CI: 0.0036\u20130.004112) (<jats:italic>I<\/jats:italic><jats:sup>2<\/jats:sup>\u00a0=\u00a099%, <jats:italic>p<\/jats:italic>\u00a0&lt;\u00a0.05) and 0.0456 per 1000 person\u2010years (95% CI: 0.0450\u20130.0462) (<jats:italic>I<\/jats:italic><jats:sup>2<\/jats:sup>\u00a0=\u00a0100%, <jats:italic>p<\/jats:italic>\u00a0&lt;\u00a0.05). The pooled clinic\u2010based prevalence was 0.79% (95% CI: 0.75%\u20130.84%), 1.13% (95% CI: 1.06%\u20131.21%), 0.21% (95% CI: 0.17%\u20130.26%), and 0.13% (95% CI: 0.1%\u20130.15%) for Asia, Africa, and Europe.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>This study identified the global incidence and prevalence of BP in terms of spatial and population distributions and among various income level. A relatively higher incidence was in Europe, females, older people, and high\u2010income level country. The prevalence was higher in Asia. 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