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Objective@#To analyze the change trend of HIV genetic subtypes and compare the first CD4+T cell counts of newly diagnosed HIV infected patients in Liuzhou from 1998 to 2012, and provide a reference for AIDS prevention and control.@*Methods@#Newly diagnosed HIV-infected patients from 1998 to 2012 in Liuzhou were selected through national HIV/ADIS comprehensive response information management system. Their plasma samples were used for RNA gene extraction, amplification, sequencing and genotyping. Coharan-Armitage trend test was used to analyze the ratio trend of genetic subtypes and phylogenetic clusters of HIV and Wilcoxon Rank Sum Test was used to compare the first CD4+T cell counts (CD4) of the different subtype HIV infected patients.@*Results@#A total of 1 877 newly diagnosed HIV infected patients were included in the study. From 1998 to 2012, the proportions of CRF01_AE and CRF01_AE (Cluster 1) increased from 78.4% (76/97) to 91.5% (1 441/1 574), from 63.9% (62/97) to 74.0% (1 164/1 574), and the proportion of CRF07_BC decreased from 17.5% (17/97) to 4.6% (72/1 574), respectively (Z=4.632, P<0.001; Z=2.455, P=0.014; Z=-5.943, P<0.001). The median and interquartile range of the first CD4 of the patients infected with subtype CRF01_AE (Cluster 1), CRF01_AE (Cluster 2), CRF07_BC and CRF08_BC were 230 (83-375), 215 (48-351), 365 (254-503) and 334 (206-479) cell/μl, respectively. The first CD4 levels of the patients infected with subtype CRF01_AE (Cluster 1) or CRF01_AE (Cluster 2) were significantly lower than those of CRF07_BC (Z=-4.795, P<0.001; Z=-4.238, P<0.001).@*Conclusion@#The genetic subtypes of HIV were mainly CRF01_AE in newly diagnosed HIV-infected patients and this subtype proportion was in increase and the first CD4 levels of the patients were low in Liuzhou during 1998 to 2012.
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Objective To understand the characteristics of HIV infected persons without long term disease progress [also known as long term non-progressors (LTNPs)],and related factors in Guangxi Zhuang Autonomous Region (Guangxi).Methods Data of persons living with HIV and receiving no antiretroviral therapy in Guangxi by the end of 2016 were collected from the national HIV/AIDS comprehensive control and prevention information system of China.Results By the end of 2016,there were 313 LTNPs in Guangxi,accounting for 2.3 ％ of those being reported for more than 10 years,5.4％ of those being reported for more than 10 years and surviving,and 26.6％ of those being reported for more than 10 years,surviving and receiving no antiretroviral therapy.Among the LTNPs,87.2％(273) were men,94.9％ (297) were aged ≤ 40 years,32.3％ (101) were farmers,55.6％ (174) were single,divorced or widowed,69.3％ (217) were of Han ethnic group,68.1％ (213) were injecting drug users,and 52.1％ (163) were from custody facilities.Multiple logistic regression analysis indicated that factors associated with delayed disease progression included age ≤40 years (compared with age ＞40 years,aOR=1.55,95％ CI:1.31-3.12) and injection drug use (compared with sexual transmission,aOR=1.23,95％ CI:1.10-1.74).Conclusions A number of LTNPs existed in HIV-infected individuals in Guangxi.Further research are needed to identify the related factors,and it is necessary to conduct large sample size studies on host immunology,genetics and the virology of HIV to explore the related mechanism.
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Objective To understand the characteristics of HIV infected persons without long term disease progress [also known as long term non-progressors (LTNPs)],and related factors in Guangxi Zhuang Autonomous Region (Guangxi).Methods Data of persons living with HIV and receiving no antiretroviral therapy in Guangxi by the end of 2016 were collected from the national HIV/AIDS comprehensive control and prevention information system of China.Results By the end of 2016,there were 313 LTNPs in Guangxi,accounting for 2.3 ％ of those being reported for more than 10 years,5.4％ of those being reported for more than 10 years and surviving,and 26.6％ of those being reported for more than 10 years,surviving and receiving no antiretroviral therapy.Among the LTNPs,87.2％(273) were men,94.9％ (297) were aged ≤ 40 years,32.3％ (101) were farmers,55.6％ (174) were single,divorced or widowed,69.3％ (217) were of Han ethnic group,68.1％ (213) were injecting drug users,and 52.1％ (163) were from custody facilities.Multiple logistic regression analysis indicated that factors associated with delayed disease progression included age ≤40 years (compared with age ＞40 years,aOR=1.55,95％ CI:1.31-3.12) and injection drug use (compared with sexual transmission,aOR=1.23,95％ CI:1.10-1.74).Conclusions A number of LTNPs existed in HIV-infected individuals in Guangxi.Further research are needed to identify the related factors,and it is necessary to conduct large sample size studies on host immunology,genetics and the virology of HIV to explore the related mechanism.