| |
HIV-positive |
HIV-unknown |
Univariable logistic regression
(GEE) |
Multivariable logistic regression (GEE)a |
| |
n=1087 |
n=255 |
OR (95% CI) |
p-value |
(OR (95% CI) |
p-value |
| Presentation year |
|
|
|
|
|
|
| Before 2010 |
731 (67.7%) |
196 (77.2%) |
1.0 |
|
1.0 |
|
| During 2010 |
349 (32.3%) |
58 (22.8%) |
1.6 (1.2, 2.2) |
0.003 |
1.0 (0.7, 1.5) |
0.989 |
| Episode number |
|
|
|
|
|
|
| 1st |
1023 (94.1%) |
254 (99.6%) |
Not included |
|
Not included |
|
| 2nd |
58 (5.3%) |
1 (0.4%) |
|
|
|
|
| 3rd |
6 (0.6) |
0 (0.0%) |
|
|
|
|
| Clinic in London |
|
|
|
|
|
|
| No |
316 (29.1%) |
100 (39.2%) |
1.0 |
|
1.00 |
|
| Yes |
771 (70.9%) |
155 (60.8%) |
1.5 (1.2, 2.1) |
0.003 |
1.4 (0.9, 2.0) |
0.099 |
| Duration of symptoms |
|
|
|
|
|
|
| Week or less |
377 (34.7%) |
65 (25.5%) |
1.0 |
|
1.00 |
|
| More than a week |
500 (46.0%) |
141 (55.3%) |
0.6 (0.5, 0.8) |
0.002 |
0.5 (0.3, 0.8) |
0.002 |
| Unknown |
210 (19.3%) |
49 (19.2%) |
0.7 (0.5, 1.1) |
0.146 |
0.7 (0.4, 1.3) |
0.304 |
| Reasons for attending |
|
|
|
|
|
|
| Symptoms |
|
|
|
|
|
|
| No |
139 (12.9%) |
31 (12.2%) |
1.0 |
|
Not included |
|
| Yes |
925 (85.1%) |
218 (85.5%) |
0.9 (0.6, 1.4) |
0.783 |
|
|
| Unknown |
23 (2.1%) |
6 (2.4%) |
0.8 (0.3, 2.1) |
0.710 |
|
|
| Contact tracing |
|
|
|
|
|
|
| No |
980 (90.2%) |
229 (89.8%) |
1.0 |
|
Not included |
|
| Yes |
84 (7.7%) |
20 (7.8%) |
1.0 (0.6, 1.6) |
0.927 |
|
|
| Unknown |
23 (2.1%) |
6 (2.4%) |
0.9 (0.4, 2.1) |
0.769 |
|
|
| Routine STI screen |
|
|
|
|
|
|
| No |
988 (90. 9%) |
232 (91.0%) |
1.0 |
|
Not included |
|
| Yes |
76 (7.0%) |
17 (6.7%) |
1.1 (0.6, 1.8) |
0.849 |
|
|
| Unknown |
23 (2.1%) |
6 (2.4%) |
0.9 (0.4, 2.1) |
0.779 |
|
|
| Referral |
|
|
|
|
|
|
| No |
1,033 (95.0%) |
233 (91.4%) |
1.0 |
|
1.0 |
|
| Yes |
31 (2.6%) |
16 (6.3%) |
0.4 (0.2, 0.8) |
0.011 |
0.3 (0.1, 0.8) |
0.015 |
| Unknown |
23 (2.1%) |
6 (2.4%) |
0.8 (0.4, 2.0) |
0.713 |
0.6 (0.2, 1.6) |
0.292 |
| Symptomsreported |
|
|
|
|
|
|
| None |
60 (5.5%) |
11 (4.3%) |
1.0 |
|
1..0 |
|
| Only Genital |
41 (3.8%) |
24 (9.4%) |
0.3 (0.1, 0.7) |
0.005 |
0.5 (0.2, 1.2) |
0.107 |
| Only Rectal |
758 (69.7%) |
147 ( 57.7%) |
1.0 (0.5, 1.8) |
0.880 |
1.2 (0.5, 2.8) |
0.600 |
| Both |
172 (15.8%) |
54 (21.2%) |
0.6 (0.3, 1.2) |
0.140 |
0.7 (0.3, 1.7) |
0.403 |
| Unknown |
56 (5.2%) |
19 (7.5%) |
0.6 (0.3, 1.3) |
0.167 |
0.9 (0.3, 2.4) |
0.810 |
| Site of infection |
|
|
|
|
|
|
| Rectal |
454 (41.8%) |
63 (29.3%) |
1.0 |
|
1.0 |
|
| Genital |
10 (0.9%) |
5 (2.3%) |
0.3 (0.1. 0.9) |
0.032 |
0.6 (0.2, 2.1) |
0.377 |
| Both or other |
8 (0.7%) |
3 (1.2%) |
0.4 (0.1, 1.5) |
0.182 |
0.6 (0.1, 2.4) |
0.428 |
| Unknown |
614 (56.5%) |
144 (97.0%) |
0.5 (0.4, 0.7) |
<0.001 |
0.6 (0.4, 0.9) |
0.015 |
| Systemic symptom |
|
|
|
|
|
|
| No |
750 (69.0%) |
186 (72.9%) |
1.0 |
|
1.0 |
|
| Yes |
292 (26.9%) |
57 (22.4%) |
1.3 (0.9, 1.7) |
0.150 |
1.6 (1.0, 2.4) |
0.034 |
| Unknown |
45 (4.1%) |
12 (4.7%) |
0.9 (0.5, 1.8) |
0.833 |
1.5 (0.6, 3.3) |
0.360 |
| Other STIb |
|
|
|
|
|
|
| No |
664 (61.1%) |
143 (56.1%) |
1.0 |
|
1.0 |
|
| Yes |
315 (29.0%) |
72 (28.2%) |
1.0 (0.7, 1.3) |
0.718 |
1.2 (0.8, 1.8) |
0.404 |
| Unknown |
108 (9.9%) |
40 (15.7%) |
0.59 (0.4, 0.9) |
0.010 |
0.5 (0.3, 0.9) |
0.013 |
| Hepatitis C (PCR) |
|
|
|
|
|
|
| No |
410 (37.7%) |
57 (22.4%) |
1.0 |
|
Not included |
|
| Yes |
138 (12.7%) |
3 (1.2%) |
5.9 (2.0, 17.5) |
0.001 |
|
|
| Unknown |
539 (49.6%) |
195 (76.5%) |
0.4 (0.3, 0.5) |
<0.001 |
|
|
a Multivariable model adjusted also for form delay (days between presentation to the clinic and filling in the surveillance form)
b No other STIs versus syphilis, non-specific urethritis, warts, herpes, hepatitis B and some less common STIs mentioned in the text field. |
