Demographic data: |
Age (years) median (range) | 38 (21–64) | 34 (22–61) | 39 (23–64) | <0.000 |
Ethnicity (white) | 373/413 (90) | 96/112 (86) | 270/292 (93) | 0.037 |
Born in the UK | 293/413 (71) | 80/113 (71) | 209/292 (72) | 0.876 |
Educated beyond secondary school | 317/413 (77) | 82/113 (73) | 228/292 (78) | 0.240 |
Employment status |
Working (part or full time) | 199/412 (48) | 63/113 (56) | 134/291 (46) | 0.149 |
Unemployed | 77/412 (18) | 22/113 (20) | 53/291 (18) | |
Medically retired | 93/412 (23) | 13/113 (12) | 76/291 (26) | |
Other | 43/412 (10) | 15/113 (13) | 28/291 (10) | |
Primary partner/boyfriend/lover | 203/413 (49) | 59/111 (53) | 139/292 (48) | 0.32 |
Clinical data: |
Self assessed health “very” or “fairly good” | 300/413 (73) | 85/113 (75) | 211/292 (72) | 0.547 |
Time in years since first HIV positive diagnosis (range) | 5.5 (0.2–16.4) | 3.7 (0.2–15.3) | 6.6 (0.2–16.4) | <0.000 |
Disease stage |
Asymptomatic | 163/407 (40) | 90/113 (80) | 71/292 (24) | |
Symptomatic non-AIDS | 134/407 (33) | 16/113 (14) | 118/292 (40) | <0.000 |
AIDS | 110/407 (27) | 7/113 (6) | 103/292 (35) | |
Viral load (copies/ml3) (median (range)) | 400 | 23 600 | <50 | 0.001 |
| (<50–500 000) | (<50–500 000) | (<50–500 000) | |
Viral load undetectable (Note: <50 copies/ml3 = undetectable) | 170/331 (41) | 3/89 (3)) | 134/240 (56) | 0.006 |
CD4 count (cells ×106/l) (median (range)) | 360 (30–1130) | 415 (60–1130) | 340 (30–1020) | 0.002 |
CD4 count >500 cells ×106/l | 76/413 (18) | 28/113 (25) | 46/292 (16) | 0.08 |
Sexually transmitted infections: |
Any sexually transmitted infections diagnosed in the past year | 125/408 (31) | 45/112 (40) | 78/288 (27) | 0.011 |
Bacterial sexually transmitted infection diagnosed in the past year | 94/408 (23) | 37/112 (33) | 56/288 (19) | 0.004 |
Sexual risk behaviour data: |
UAI with one or more new partners in the past month | 81/368 (22) | 26/101 (26) | 54/260 (21) | 0.307 |
Insertive UAI with one or more new partners in the past month | 61/368 (17) | 18/101 (18) | 43/260 (17) | 0.770 |
UAI with one or more new partners in the past year | 155/399 (39) | 51/107 (48) | 101/285 (35) | 0.058 |
Insertive UAI with one or more new partners in the past year | 117/399 (29) | 39/107 (36) | 76/285 (27) | 0.027 |
Median number of sexual partners in the past month (range) | 2 (0–55) | 3 (0–50) | 2 (0–55) | 0.028 |
Median number of sexual partners in the past year (range) | 12 (0–750) | 20 (0–520) | 9 (0–750) | 0.057 |