Figure 2. Incidence of tuberculosis in adults living with HIV (age ≥15 years) not on antiretroviral therapy, by study and CD4-positive lymphocyte count.

Study data reported as incidence are plotted as triangles with confidence intervals; study data reported as hazard ratios are reported as dots, with confidence intervals except for the reference category. Note: the rightmost data point for Wolday, 2003 had zero TB cases which is not defined on a logarithmic scale—only the top of the Poisson exact confidence interval is shown, with the bottom truncated.