Figure. Trends in notification rates of new smear-positive tuberculosis (TB) cases in Ho Chi Minh City, Vietnam, observed and after correction for proportion of cases attributable to HIV infection. Total population (A), sex (B), and age specific (C). Correction of notification rates based on population attributable fraction to HIV infection assuming a risk ratio (RR) of 5 for risk for TB among HIV-infected compared with non–HIV-infected populations. *Error bars indicate corrected rates based on assumption that RR = 2 (top) or RR = 10 (bottom). †Exponential annual change (expressed as percentage) of TB notification rates.