1. STI co-infections at HIV diagnosis in france
Florence LOT, Françoise Cazein, Josiane Pillonel, Ndeindo Ndeikoundam
“No conflict of interest to declare”

2. Objectives and methods
To analyse the frequency of STI in people newly diagnosed for HIV between 2012 and 2016
In the mandatory HIV surveillance system, 4 bacterial STI
syphilis, gonorrhoea, genital chlamydial infection and rectal lymphogranuloma venereum (LGV)
reported in adults (≥15 years old) since 2012 (as yes / no / unknown)
if concurrently diagnosed at the time of HIV diagnosis or diagnosed in the previous months before HIV diagnosis
Defined as «STI/HIV co-infections»
Analysis by transmission group (overall / for each STI) and trends

3. RESULTS (1)
Information on STI diagnoses available for 12,047 new HIV diagnoses in adults during the period (52% of all new HIV diagnoses)
STI/HIV co-infections were globally 14.6% (1,764/12,047) of HIV diagnoses but more frequent in men having sex with men (MSM)
Frequency of STI/HIV co-infections in adults
by HIV transmission group and sex,

4. RESULTS (2)
STI/HIV co-infections have significantly increased overtime, from 12.6% in 2012 to 18.3% in 2016 (p<10-4)
By transmission group, this increase was significant only in MSM, from 22.1% to 31.9% (p<10-4)
Frequency of STI/HIV co-infections in adults by HIV transmission group and year of HIV diagnosis,

5. RESULTS (3)
Among the 4 bacterial STI reported, syphilis was the most frequent, particularly in MSM
Heterosexual men were more often co-infected with syphilis and gonorrhoea than heterosexual women, who were more frequently co-infected with chlamydia
Rectal LGV was diagnosed only in MSM
Frequency of STI/HIV co-infections in adults by bacterial STI
and HIV transmission group,
MSM
Heterosexual
men
Heterosexual women
IDU
N= 5,216
N=2,614
N=3,131
N=134 %
Syphilis
20.2
6.0
1.3
5.2
Gonorrhoea
4.5
0.9
0.3
0.0
Genital chlamydial infection
3.5
1.7
2.2
Rectal LGV
0.5

6. Thanks to all biologists and clinicians reporting HIV diagnoses !
conclusion
STI/HIV co-infections
have increased overtime and
affect almost one third (32%) of MSM newly diagnosed with HIV in 2016 (syphilis+++)
These results underline the importance of offering an HIV test to patients presenting with a STI and conversely, as recommended in France
In a context of STI increase in MSM and combined prevention for HIV, STI repeated screening is particularly important to treat rapidly patients and partners
Thanks to all biologists and clinicians reporting HIV diagnoses !