Figure 3

Time-updated changes in the prevalence of anaemia (any severity) among patients receiving ART stratified by known or possible risk factors for anaemia A) baseline anaemia severity (classified according to WHO criteria) B) gender C) AZT exposure during first year of ART D) TB-disease status E) baseline CD4 cell count F) baseline HIV viral load. *P < 0.05 for the difference in the proportion of patients with anaemia across each group at the given time interval using chi-squared test. †P < 0.05 for the difference in the proportion of patients with anaemia at baseline and those with anaemia after 12 months of ART for each individual variable using chi-squared test. Abbreviations: AZT, zidovudine; TB, tuberculosis.