Are comparisons of AIDS statistics between countries limited by different definitions of AIDS?
Comparisons of AIDS statistics between countries are difficult because of the differences in the definition of AIDS and the different surveillance methods used between countries. The definition of AIDS used in Canada is based on guidelines set by the Centers for Disease Control and Prevention in the United States. However, it is important to note that in contrast to the U.S. AIDS case definition, the list of specific disease indicators required for a Canadian AIDS diagnosis does not include a CD4 T-lymphocyte count less than 200 cells per cubic millimetre of blood (< 200/µL). The definitions of AIDS used in other countries are based on different guidelines. Although global differences between guidelines and therefore the definition of AIDS exist, these differences are small. The methods used to collect, analyze and report HIV/AIDS surveillance data may also vary from country to country.
Related Questions
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- Are comparisons of AIDS statistics between countries limited by different definitions of AIDS?
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