TY - JOUR
T1 - A continuum of HIV care describing mortality and loss to follow-up
T2 - a longitudinal cohort study
AU - UK CHIC Study Steering Committee
AU - Jose, Sophie
AU - Delpech, Valerie
AU - Howarth, Alison
AU - Burns, Fiona
AU - Hill, Teresa
AU - Porter, Kholoud
AU - Sabin, Caroline A.
AU - Ainsworth, Jonathan
AU - Allan, Sris
AU - Anderson, Jane
AU - Babiker, Abdel
AU - Chadwick, David R.
AU - Churchill, Duncan
AU - Dunn, David
AU - Gilson, Richard
AU - Gompels, Mark
AU - Hay, Phillip
AU - Johnson, Margaret
AU - Kegg, Stephen
AU - Leen, Clifford
AU - Martin, Fabiola
AU - Mital, Dushyant
AU - Nelson, Mark
AU - Orkin, Chloe
AU - Palfreeman, Adrian
AU - Phillips, Andrew
AU - Pillay, Deenan
AU - Post, Frank
AU - Pritchard, Jillian
AU - Scwenk, Achim
AU - Tariq, Anjum
AU - Trevelion, Roy
AU - Ustianowski, Andy
AU - Walsh, John
N1 - Publisher Copyright:
© 2018 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license
PY - 2018/6
Y1 - 2018/6
N2 - Background: The cross-sectional HIV care continuum is widely used to assess the success of HIV care programmes among populations of people with HIV and the potential for ongoing transmission. We aimed to investigate whether a longitudinal continuum, which incorporates loss to follow-up and mortality, might provide further insights about the performance of care programmes. Methods: In this longitudinal cohort study, we included individuals who entered the UK Collaborative HIV Cohort (CHIC) study between Jan 1, 2000, and Dec 31, 2004, and were linked to the national HIV cohort database (HIV and AIDS Reporting System). For each month during a 10 year follow up period, we classified individuals into one of ten distinct categories according to engagement in care, antiretroviral therapy (ART) use, viral suppression, loss to cohort follow-up and loss to care, and mortality, and assessed the proportion of person-months of follow-up spent in each stage of the continuum. 5 year longitudinal continuums were also constructed for three separate cohorts (baseline years of entry 2000–03, 2004–07, and 2008–09) to compare changes over time. Findings: We included 12 811 people contributing 1 537 320 person-months in our analysis. During 10 years of follow-up, individuals spent 811 057 (52·8%) of 1 537 320 person-months on ART. Of the 811 057 person-months spent on ART, individuals had a viral load of 200 copies per mL or less for 607 185 (74·9%) person-months. 10 years after cohort entry, 3612 (28·1%) of 12 811 individuals were lost to follow-up, 954 (26·4%) of whom had transferred to a non-CHIC UK clinic for care. By 10 years, 759 (5·9%) of 12 811 participants who entered the cohort had died. Loss to follow-up decreased and the proportion of person-months that individuals spent virally suppressed increased over calendar time. Interpretation: Loss to follow-up in HIV care programmes was high and rates of viral suppression were lower than previously reported. Complementary information provided by a longitudinal continuum might highlight areas for intervention along the HIV care pathway, however, transfers outside the cohort must be accounted for. Funding: Medical Research Council, UK.
AB - Background: The cross-sectional HIV care continuum is widely used to assess the success of HIV care programmes among populations of people with HIV and the potential for ongoing transmission. We aimed to investigate whether a longitudinal continuum, which incorporates loss to follow-up and mortality, might provide further insights about the performance of care programmes. Methods: In this longitudinal cohort study, we included individuals who entered the UK Collaborative HIV Cohort (CHIC) study between Jan 1, 2000, and Dec 31, 2004, and were linked to the national HIV cohort database (HIV and AIDS Reporting System). For each month during a 10 year follow up period, we classified individuals into one of ten distinct categories according to engagement in care, antiretroviral therapy (ART) use, viral suppression, loss to cohort follow-up and loss to care, and mortality, and assessed the proportion of person-months of follow-up spent in each stage of the continuum. 5 year longitudinal continuums were also constructed for three separate cohorts (baseline years of entry 2000–03, 2004–07, and 2008–09) to compare changes over time. Findings: We included 12 811 people contributing 1 537 320 person-months in our analysis. During 10 years of follow-up, individuals spent 811 057 (52·8%) of 1 537 320 person-months on ART. Of the 811 057 person-months spent on ART, individuals had a viral load of 200 copies per mL or less for 607 185 (74·9%) person-months. 10 years after cohort entry, 3612 (28·1%) of 12 811 individuals were lost to follow-up, 954 (26·4%) of whom had transferred to a non-CHIC UK clinic for care. By 10 years, 759 (5·9%) of 12 811 participants who entered the cohort had died. Loss to follow-up decreased and the proportion of person-months that individuals spent virally suppressed increased over calendar time. Interpretation: Loss to follow-up in HIV care programmes was high and rates of viral suppression were lower than previously reported. Complementary information provided by a longitudinal continuum might highlight areas for intervention along the HIV care pathway, however, transfers outside the cohort must be accounted for. Funding: Medical Research Council, UK.
UR - http://www.scopus.com/inward/record.url?scp=85048471327&partnerID=8YFLogxK
U2 - 10.1016/S2352-3018(18)30048-1
DO - 10.1016/S2352-3018(18)30048-1
M3 - Article
C2 - 29893243
AN - SCOPUS:85048471327
SN - 2352-3018
VL - 5
SP - e301-e308
JO - The Lancet HIV
JF - The Lancet HIV
IS - 6
ER -
