Table 1.
Characteristics of the study population
| Population | ||
| Total, n (%) | 2013 | (100) |
| Centre, n (%) | ||
| Bonn | 544 | (27) |
| Cologne | 995 | (49) |
| Munich | 474 | (24) |
| N = 2013 | ||
| Age, years, median (IQR) | 46 | (39, 54) |
| N = 2006 | ||
| Year of birth, n (%) | ||
| Before 1970 | 1170 | (58) |
| 1970 and after | 838 | (42) |
| N = 2008 | ||
| Gender, n (%) | ||
| Female | 462 | (23) |
| Male | 1551 | (77) |
| N = 2013 | ||
| Ethnicity, n (%) | ||
| Caucasian | 1589 | (79) |
| Afro-American | 287 | (14) |
| Asian | 80 | (4) |
| Hispanic | 40 | (2) |
| N = 1996 | ||
| Country of birth, n (%) | ||
| Germany | 1349 | (67) |
| Outside of Germany | 637 | (32) |
| N = 1986 | ||
| Mode of HIV acquisition, n (%) | ||
| MSM | 1147 | (57) |
| Heterosexual | 388 | (19) |
| IVDU | 73 | (4) |
| High prevalence country | 227 | (11) |
| Other | 178 | (9) |
| N = 2013 | ||
| Duration of HIV infection, years, median (IQR) | 8 | (4, 15) |
| N = 2008 | ||
| CDC stage, n (%) | ||
| A | 1434 | (71) |
| B | 205 | (10) |
| C | 368 | (18) |
| N = 2007 | ||
| Baseline CD4+ cell count, cells/μl, median (IQR) | 558 | (390, 730) |
| N = 2008 | ||
| Nadir CD4+ cell count, cells/μl, median (IQR) | 200 | (70, 330) |
| N = 1976 | ||
| HIV-RNA, n (%) | ||
| ⩽40 copies/ml | 1583 | (79) |
| >40 copies/ml | 423 | (21) |
| N = 2006 | ||
| ART, n (%) | ||
| On ART | 1793 | (89) |
| No ART | 218 | (11) |
| N = 2011 |
IQR, Interquartile range; MSM, men who have sex with men; IVDU, intravenous drug use; CDC, US Centers for Disease Control and Prevention; ART, antiretroviral therapy; N, number of patients available for respective parameter.