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KMID : 0984720030350060393
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Infection and Chemotherapy
2003 Volume.35 No. 6 p.393 ~ p.400
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Initial CD4+ T Cell Counts Analysis in Newly HIV-diagnosed Koreans
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Kim Chang-Oh
Shin Haeng-Seop
Choi Byeong-Sun
Lee June-Young
Suh Soon-Duk
Kim Ki-Soon
Oh Woon-Sung
Ham Il-Woo
Kwon Joon-Wuk
Lee Joo-Shil
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Abstract
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Background : In spite of active HIV/AIDS control and managements, UNAIDS estimate that 40 million people were living worldwide with HIV at the end of 2001. In Korea, The member of HIV- infected adults are continuously growing. For improvement of HIV screening and prevention, we analyzed over times the relationship between the changes in initial CD4+ T cell counts of newly HIV- diagnosed adults, sex, and exposure route.
Methods : We selected 1011 newly HIV-diagnosed adults whose initial CD4+ T cell count was deter-mined within 6 months of HIV diagnosis between 1990 and June, 2002. Based on CD4+ T cell counts, the selected people were grouped into 4 as follows : <200 cells/mm3, 200-349 cells/mm3, 350-699 cells/mm3, and >700 cells/mm3. The relationship between initial CD4+ T cell counts, age, sex, and HIV risk category were studied by regression statistic methods.
Results : The median initial CD4+ T cell counts decreased over times (P<0.001). In each major group, over 50%.of initial CD4+ T cell counts were below 350 cells/mm3. For homosexually infected adults, the median age did not statistically increase (P=0.062). However, in heterosexually infected adults, the median age increased throughout the time period examined (P<0.001) with an exception of female group (P=0.427). The multi-regression analyses revealed that older age (P<0.001) and male sex (P<0.001) were independently associated with lower initial CD4+ T cell counts, but not exposure group (P=0.483). For each year cohort of newly diagnosed adults, the median initial CD4+ T cell counts in subsequent years decreased until 1998 and then increased thereafter.
Conclusion : These results show that a large proportion of HIV-infected adults are being diagnosed late in the course of HIV infection, particularly heterosexually infected male group. Therefore, we should continuously enforce screening, prevention and prompt diagnosis of high risk groups.
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KEYWORD
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HIV infection, CD4+T cell count, Homosexuality
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