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. 2011 Jan 12;11:11. doi: 10.1186/1471-2334-11-11

Table 1.

Demographic and clinical characteristics of HIV-infected patients in 6 clinical centres in Northern France and Brussels: January 1997 to December 2007

Characteristics Northern France
(n = 1218)
Brussels, Belgium
(n = 601)
p-value
Age, years
Median 35 36 0.07
25th percentile 28 30
75th percentile 43 43

Gender <0.0001
Male 860 (70.6%) 338 (56.2%)
Female 358 (29.4%) 263 (43.8%)

HIV transmission category <0.0001
Men who have sex with men 541 (44.9%) 156 (28.3%)
Injection drug use 41 (3.4%) 10 (1.8%)
Heterosexual contact 622 (51.7%) 385 (69.9%)

Sub-Saharan African immigrant <0.0001
Yes 265 (21.8%) 319 (53.1%)
No 953 (78.2%) 282 (46.9%)

Period at enrolment <0.0001
1997-1999 337 (27.7%) 124 (20.6%)
2000-2002 346 (28.4%) 147 (24.5%)
2003-2007 535 (43.9%) 330 (54.9%)

AIDS-defining disease at enrolment 195 (16.0%) 67 (11.1%) 0.005

Baseline CD4 count,/mm3
Median 353 305 0.006
25th percentile 172 165
75th percentile 548 485