Table 1 Population characteristics at primary infection
Not clustered individuals | All clustered individuals | Large clustered individuals (≥3 individuals) | p value§ | |
|---|---|---|---|---|
N | 71.5% (969) | 28.5% (387) | 17% (231) | |
Age (years) Median (min–max) | 36 (17–79) | 32.5 (18–68) | 32 (18–64) | p < 0.01 |
Sex | ||||
Male | 83.0% (804) | 95.9% (371) | 98.2% (227) | p < 0.01 |
Female | 16.6% (161) | 3.9% (15) | 1.3% (3) | |
NA | 0.4% (4) | 0.2% (1) | 0.5% (1) | |
Ethnicity | ||||
White | 83.7% (811) | 91.5% (354) | 93.1% (215) | p < 0.01 |
Black | 12.8% (124) | 5.7% (22) | 3% (7) | |
Asian | 1.5% (15) | 1.3% (5) | 1.3% (3) | |
Others/NA | 2.0% (19) | 1.6% (6) | 2.6% (6) | |
Origin | ||||
Paris areaa | 38.4% (372) | 37% (143) | 41.6% (96) | p = 0.66 |
Other French regions | 55.3% (536) | 56.8% (220) | 52.8% (122) | |
Overseas | 6.3% (61) | 6.2% (24) | 5.6% (13) | |
Risk | ||||
MSM | 65.6% (636) | 85.8% (332) | 88.3% (204) | p < 0.01 |
HTS | 27.6% (267) | 7.5% (29) | 4.3% (10) | |
IDU | 0.3% (3) | 0% (0) | 0% (0) | |
Others/NA | 6.5% (63) | 6.7% (26) | 7.4% (17) | |
Year of diagnosis | ||||
1999–2005 | 38.4% (372) | 24.8% (96) | 20.3% (47) | p < 0.01† |
2006–2010 | 34.2% (332) | 40.6% (157) | 43.7% (101) | |
2011–2014 | 27.4% (265) | 34.6% (134) | 35.9% (83) | |
CD4 (cells/µL)—median (IQR) | 506 (382–655) | 522 (382–655) | 525 (379–659) | p = 0.25 |
HIV-RNA level Log10 copies/mL—median (IQR) | 5.1 (4.4–5.8) | 5.2 (4.7–5.8) | 5.2 (4.6–5.8) | p = 0.15 |
HIV-1 subtype | ||||
B | 71.5% (693) | 74.9% (290) | 69.2% (160) | p = 0.01 |
CRF02_AG | 13.4% (130) | 20.4% (79) | 28.1% (65) | |
A | 3.2% (31) | 0.2% (2) | 0 | |
C | 2.4% (23) | 0% (0) | 0 | |
Others | 9.5% (92) | 3.8% (16) | 2.6% (6) | |