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Barriers to Retention and Factors Associated with LTF in HIV Programs The literature and ICAP. Matthew Lamb mrl2013@columbia.edu ICAP-M&E. Barriers to retention. Questions asked by Geng et al. What happened to patients who were LTF? vital status current care and ART status
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Barriers to Retention and Factors Associated with LTF in HIV Programs The literature and ICAP Matthew Lamb mrl2013@columbia.eduICAP-M&E
Questions asked by Geng et al. • What happened to patients who were LTF? • vital status • current care and ART status • 2. What reasons do patients LTF give for no longer attending clinic?
Study design and sampling frame Cumulative LTF Incidence: 12 mo: 16% 24 mo: 30% 36 mo: 39% 3,628 ART patients 23% (829) LTF 77% (2,799) remained in care Automatically generated from electronic medical records when patient has not been seen for 6 months Outreach Worker: Visits location of patient, asks around ~ 1 afternoon/patient 15% (128) tracked 25% (32) died 13% (17) not found 62% (79) alive 61% (48) patient interviewed 39% (31) informant interviewed Questionnaire: reasons for LTF; current care and ART status
Patient characteristics associated with Death among those LTF 111 tracked and vital status ascertained 79 alive 32 died (25%) * death rate highest 1-3 mo > last clinic visit Predictors of Survival in LTF Patients
Study design and sampling frame 3,628 ART patients 23% (829) LTF 77% (2,799) remained in care 15% (128) tracked 25% (32) died 13% (17) not found 62% (79) alive 61% (48) patient interviewed 39% (31) informant interviewed 83% (40) in care elsewhere in last 3 months 71% (34) taking ART in the last month *self report
Extrapolating to all LTF patients Patient attends clinic Unknown (LTF) Recorded death Recorded transfer Recorded survival and retention ~ 50% ~ 25% ~ 25% Unrecorded withdrawal Self-reported transfer Unrecorded death
Conclusions and points for future discussion • Structural barriers to retention dominate the given reasons in this study • Are there program characteristics that address enablers to retention? • Among those LTF later ascertained to be dead, highest death rate shortly after last clinic visit • Clinical/demographic factors associated with death among LTF patients suggests areas of potential intervention • How can this inform clinic monitoring of patients at high risk of death? • LTF is a mix of undocumented deaths (bad!), unknown (bad!) and transfers (problematic!)
Program characteristics associated with non-retention, LTF, and death at ICAP sites Preliminary work Matthew Lamb
Aims • Are program-level characteristics (e.g., adherence support, outreach) associated with retention, LTF, or death at ICAP-supported sites? • Are the observed associations similar when using aggregate (URS) and patient-level data?
Program characteristics • Measured from PFaCTS • Only gets at program availability, not quality or coverage • Reliability study ongoing, results soon! • Current ICAP ‘retention’ programs focus primarily on psychosocial interventions to improve adherence to ART in addition to retention
Data sources Program characteristics: PFaCTS PLD: 84 sites, 5 countries, 80,000 patients URS: 242 sites, 5 countries, 156,000 patients URS: 349 sites, 10 countries, 233,000 patients
Study Design • Aggregate estimates of LTF, Death, and Non-retention (LTF + Death) rates obtained from Track 1.0 indicators reported to URS • Cumulative number on ART – cumulative number LTF or dead • Excluding known transfers • Patient-level estimates based on person-years since ART initiation until (a) documented death or (b) 6 months with no visit • Excluding known transfers • Information combined with PFaCTS to assess association between characteristics targeting adherence and retention and the two measures of LTF rates
Program characteristics associated with LTF: aggregate data LTF Rate Ratio (95% CI) Food support Frequent counseling Peer educators Educational materials Outreach Support groups Reminder tools >1 directed counseling N = 384 sites with PFaCTS and URS care and treatment data through July, 2009 (10 countries) N = 242 sites with PFaCTS in countries providing electronic PLD, to ICAP-NY (5 countries) N = 84 sites with PFaCTS, electronic PLD, and URS care and treatment data through July, 2009 (5 countries) Through June 2009. Adjusting for urban/rural, facility type, year facility began providing ART care, cumulative number of patients seen in care
Preliminary results: focusing on two programmatic services (active patient outreach and food support): 84 sites with patient-level data Aggregate analysis 1st bar = crude, 2nd bar = adjusted Patient-level analysis 1st bar = crude, 2nd bar = adjusted for site-level factors 3rd bar = adjusted for site- and patient-level factors
LTF since ART initiation, by urban/rural: • 100 ICAP sites with patient-level data
LTF since ART initiation, by facility type: • 100 ICAP sites with patient-level data
LTF since ART initiation, by year of ART initiation: • 100 ICAP sites with patient-level data
ICAP analysis: Strengths and limitations • Strengths • Limitations • Routinely-collected data • Aggregate analyses can use all ICAP care and treatment sites • Patient-level analyses show that results from aggregate are largely reliable • Routinely-collected data • PFaCTS doesn’t get at program quality or coverage • Potential misclassification in PFaCTS harder to detect true associations
Conclusions • Routinely-collected data provide evidence that program services may influence patient retention • Structural barriers may be important (Geng), and one intervention aimed at these barriers (food support) is associated with reduced LTF • Use of routinely collected data for program evaluation can provide insights for further research
Acknowledgements • ICAP country programs • ICAP M&E Advisors • Ministries of Health, provincial and district-level programs • Non-governmental organizations and partners • PEPFAR • Doris Duke Charitable Foundation ORACTA program • ICAP M&E NY team • Molly McNairy • Denis Nash