2013 J OINT B ASHH & B HIVA N ATIONAL A UDIT OF P ARTNER N OTIFICATION OF A DULTS N EWLY D IAGNOSED WITH HIV INFECTION __________________________________.

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Presentation transcript:

2013 J OINT B ASHH & B HIVA N ATIONAL A UDIT OF P ARTNER N OTIFICATION OF A DULTS N EWLY D IAGNOSED WITH HIV INFECTION __________________________________ M ICHAEL R AYMENT ON B EHALF OF THE B ASHH N ATIONAL A UDIT G ROUP AND B HIVA A UDIT AND S TANDARDS S UB - COMMITTEE BHIVA A UTUMN C ONFERENCE N OVEMBER 2013

P ARTNER N OTIFICATION “The process of informing the sexual partners of people with sexually transmitted infections, including HIV, of their potential exposure to infection, ensuring their evaluation and/or treatment, and providing advice about preventing future infection.” WHO/UNAIDS, 1999

M ETHODS  Case note review of up to 40 consecutive patients newly diagnosed with HIV infection in 2011 (index cases) and their contacts (up to 5 per index case)  169 HIV services (156 GUM, 13 non-GUM) took part

I NDEX P ATIENT C HARACTERISTICS  N=2964  69% male (63% MSM)  52% white, 33% black African  60% under 40 yrs  0.5% IDU

D URATION OF I NFECTION  Time from infection to diagnosis could be estimated for 53.6% (n=1590) index patients  23.7% (n=377) were recently infected (within 6 months) with supporting RITA data supplied for 57 (15%)

2964 index cases 90 (3.1%) PN initiated: no action required 2831 (96.9%): action required 2470 (84.6%) PN process continued 361 (12.4%) PN not done or not documented P ARTNER N OTIFICATION P ROCESS 43 (1.5%) documented PN done elsewhere: excluded from PN denominator 2921 (100%) denominator index cases

A UDIT C OMPLETION FOR C ONTACTS 3211 contacts were audited. Index cases were estimated to have over 6400 contacts 1051 index cases had only one contact: 923 (87.8%) of their contacts were audited The proportion of contacts audited was lower for index cases with higher numbers of contacts

D ISTRIBUTION OF N UMBERS OF C ONTACTS PER I NDEX C ASE

PN P ROCESS FOR C ONTACTS 519 (16.2%) not at risk: 471 known positive, 33 deceased, 10 status known, 5 not exposed 1399 (52.0%) attended for testing: 293 newly diagnosed HIV-positive (20.9% of those tested) 310 (24.0%) informed, not known whether tested (31% of contacts NOT informed)

21% of 1399 susceptible contacts tested through PN process were newly diagnosed with HIV infection One new case of HIV was diagnosed through PN for every 10 index cases

V ARIATION IN P REVALENCE BY I NDEX P ATIENT C HARACTERISTICS

V ARIATION IN P REVALENCE BY C ONTACT T YPE

V ARIATION IN P REVALENCE BY BASHH R EGION Wide range observed across regions 9.5% in Northern region 29.4% in Wales Partnership type remains only independent predictor of prevalence in contacts

T HE U NDIAGNOSED P OOL Assuming the same prevalence by contact type among tested and untested contacts, 422 potentially contactable sexual contacts were infected with HIV: 283* (67%) were tested and diagnosed via PN 138 (33%) remained undiagnosed *A further 5 vertical contacts and 5 sexual contacts whose contactability was not stated were diagnosed with HIV, giving 293 new diagnoses in total

PN N ON -C OMPLETION BY C ONTACT T YPE

PN O UTCOMES Outcome as defined by BASHH PN Statement, per index case: 0.45 contacts verified by health care worker (HCW) as having attended a service 0.64 contacts attended a service including patient report 0.75 if contacts informed of risk but not known to have attended a service are also included Outcome for contacts at risk of having undiagnosed HIV, per index case: 0.29 HCW verified contacts at risk attended a service 0.48 contacts at risk attended a service including patient report

V ARIATION IN O UTCOMES : C ONTACTS A TTENDING PER I NDEX P ATIENT

S UMMARY O UTCOMES AND R EGIONAL V ARIATION It is very unlikely that case mix variation wholly explains differences in site-to-site outcomes

S ITE V ARIATION : C ONTACTS A TTENDING PER I NDEX C ASE

T IME TO O UTCOME : K APLAN -M EIER P LOT S HOWING AT R ISK C ONTACTS WHO A TTENDED ( N =1057)

L IMITATIONS Some data quality issues – inconsistent reporting in relation to: Contacts already known to have HIV, been tested or deceased Index patients for whom PN may have been conducted elsewhere Maximum of 5 contacts audited per index case – many contacts not audited

C ONCLUSIONS PN is an effective strategy for diagnosing HIV: Prevalence of newly diagnosed HIV: 20.9% among tested contacts One contact was newly diagnosed for every 10 index cases However, one in three possibly HIV-positive contactable contacts may have remained undiagnosed

C ONCLUSIONS Wide variation in numbers of contacts attending per index case Case-mix unlikely to account for this variation PN completion substantially higher for regular sexual partners than ex-regular or known casual ones

N EXT S TEPS AND R ECOMMENDATIONS BHIVA and BASHH will provide individual site reports detailing site-level outcomes All services should review their performance and seek to improve PN outcomes PN should include ex-regular and casual known as well as regular partners Development of novel HIV PN indicator

A CKNOWLEDGEMENTS V Apea E Buitndam A de Burgh-Thomas C Carne D Daniels J Dhar S Estreich J Evans-Jones M Farazmand M Gupta J Hardie D Harte C Knapper M Lechelt H McClean (Chair) A Menon-Johansson G Morris S Quah A Rae M Rayment L Sanmani C Sethi W Spice A Sukthanker A Sullivan S Tayal G Wildman E Wilkins A Williams J Anderson S Bhagani F Burns D Churchill K Clay H Curtis (co-ordinator) V Delpech M Desai K Doerholt S Edwards A Freedman Y Gilleece P Gupta S Morris J Musonda O Olarinde E Ong (Chair) M Rayment C Sabin A Schwenk A Sullivan H Veerakathy E Wilkins BASHH National Audit Group BHIVA Audit and Standards Sub- Committee Thanks to all clinical services who provided data