| Variable | N | % | 
      
        | Gender |  |  | 
      
        | Female | 967 | 52 | 
      
        | Male | 891 | 48 | 
      
        | Mode    of acquisition of the virus |  |  | 
      
        | Heterosexual relation | 1557 | 84 | 
      
        | Homosexual/bisexual relation | 47 | 3 | 
      
        | Others/unknown | 254 | 14 | 
      
        | Nationality |  |  | 
      
        | French citizens | 313 | 17 | 
      
        | Non-French citizens | 1110 | 60 | 
      
        | Unknown | 435 | 23 | 
      
        | having    a declared addiction |  |  | 
      
        | No | 1723 | 93 | 
      
        | Yes | 135 | 7 | 
      
        | With at least alcohol | 75 | 56 | 
      
        | With at least marijuana | 17 | 13 | 
      
        | With at least crack cocaine | 67 | 50 | 
      
        | Having    a HAART at enrolment |  |  | 
      
        | No | 1538 | 83 | 
      
        | Yes | 320 | 17 | 
      
        | Death recorded in the database |  |  | 
      
        | No | 1662 | 89 | 
      
        | Yes | 196 | 11 | 
      
        | Variables | Mean (min - max) | Standard dev. | 
      
        | Age at enrolment | 42 (0 - 88) | 12,5 | 
      
        | CD4 count at enrolment | 343 (1 - 1655) | 271 |