In 2002, China began the National Free Antiretroviral Program, which provides highly active antiretroviral therapy (HAART)
to eligible HIV-positive persons. Among 48 785 program participants over 5 years, mortality was highest in the 3 months after
HAART initiation, decreased to 4 to 5 deaths per 100 person-years by 6 months, and stayed stable through year 5. The cumulative
rate of immunologic treatment failure, which was measured by CD4 cell count, was 50% by year 5.