title: Trends in post-infection CD4 cell counts and plasma HIV-1 RNA levels in HIV-1-infected patients in France between 1997 and 2005.
abstract: OBJECTIVE
  We studied trends in initial post infection CD4 cell counts and viral load values in patients diagnosed at estimated time of primary infection between 1997 and 2005 in France.
  
  
  METHODS
  We selected from the French Hospital Database on HIV infection white patients with documented dates of sexually transmitted HIV-1 infection who had a first CD4 cell count (n = 1441) or viral load assay (n = 1402) within 12 months after infection and before any antiretroviral therapy. Chronological trends in initial CD4 cell counts and viral load values were studied by using linear regression analysis.
  
  
  RESULTS
  The initial CD4 cell count declined by an average of 5.76 cells per cubic millimeter per year [95% confidence interval (CI): -11.28 to -0.24 cells/mm3 per year] and compared with 1997 initial viral load increased significantly by a mean of 0.376 log10 copies per milliliter (95% CI: 0.044 to 0.707 log10 copies/mL) in 1999, 0.548 log10 copies per milliliter (95% CI: 0.288 to 0.808 log10 copies/mL) in 2000-2002, and 0.525 log10 copies per milliliter (95% CI: 0.267 to 0.7783 log10 copies/mL) in 2003-2005.
  
  
  CONCLUSIONS
  We think that lower CD4 cell counts and higher viral loads at a given time post infection suggest a more rapid progression of the disease and therefore an increased HIV pathogenicity.
authors.affiliation: UPMC Univ Paris 06, UMR_S 943, Paris, France. valerie.potard@ccde.chups.jussieu.fr
authors.forename: Valérie
authors.initials: V
authors.lastname: Potard
authors.forename: Laurence
authors.initials: L
authors.lastname: Weiss
authors.forename: Franck
authors.initials: F
authors.lastname: Lamontagne
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Rouveix
authors.forename: Geneviève
authors.initials: G
authors.lastname: Beck-Wirth
authors.forename: Marie-Pierre
authors.initials: MP
authors.lastname: Drogoul-Vey
authors.forename: Mohamed Faouzi
authors.initials: MF
authors.lastname: Souala
authors.forename: Dominique
authors.initials: D
authors.lastname: Costagliola
mesh_terms: D000328:Adult; D018791:CD4 Lymphocyte Count; D005260:Female; D005602:France / Q000453:epidemiology; D015658:HIV Infections / Q000097:blood* / Q000276:immunology*; D015497:HIV-1; D006801:Humans; D008297:Male; D008875:Middle Aged; D012367:RNA, Viral / Q000097:blood*; D013997:Time Factors; D019562:Viral Load
chemical_list: D012367:RNA, Viral