Search strategy.

<p>Search strategy.</p

Forest plots of acquired (A) and primary (B) MDR-TB prevalence ratios by HIV status and corresponding 95% confidence intervals^*.

<p>^*Clark O; Djulbegovic B. Forest plots in excel software (Data sheet). 2001. Available at <a href="http://www.evidencias.com" target="_blank">www.evidencias.com</a>.</p

MDR-TB Prevalence ratio by HIV prevalence among study participants and by region^*.

<p>^*One outlier from the Latin American region (HIV Prevalence: 0.20, Prevalence Ratio: 45) is not presented.</p

MDR-TB prevalence by HIV status in 32 studies.

*<p>includes patients with unknown HIV status.</p>**<p>all patients have unknown HIV status.</p