open access publication

Article, 2024

Survival among people with HIV and their families in Denmark 1995–2021: a nationwide population-based cohort study

The Lancet Regional Health - Europe, ISSN 2666-7762, Volume 43, Page 100956, 10.1016/j.lanepe.2024.100956

Contributors

Eves, Caroline 0009-0004-1655-9199 [1] Omland, Lars Haukali 0000-0002-5338-8948 (Corresponding author) [2] Gerstoft, January [2] Kronborg, Gitte 0000-0002-2075-1827 [3] Johansen, Isik Somuncu 0000-0002-2189-9823 [4] [5] Larsen, Carsten Schade 0000-0002-3963-3804 [6] Porskrog, Anders [7] Dalager-Pedersen, Michael 0000-0002-3220-2526 [8] [9] Lunding, Suzanne [10] Leth, Steffen T 0000-0003-3194-9844 [11] [12] Nielsen, Lars Nørregaard [13] Tetens, Malte Mose 0000-0002-6464-8944 [2] Obel, Niels 0000-0002-5031-0045 [2] [14]

Affiliations

  1. [1] Statens Serum Institut
  2. [NORA names: SSI Statens Serum Institut; Governmental Institutions; Denmark; Europe, EU; Nordic; OECD];
  3. [2] Rigshospitalet
  4. [NORA names: Capital Region of Denmark; Hospital; Denmark; Europe, EU; Nordic; OECD];
  5. [3] Hvidovre Hospital
  6. [NORA names: Capital Region of Denmark; Hospital; Denmark; Europe, EU; Nordic; OECD];
  7. [4] Odense University Hospital
  8. [NORA names: Region of Southern Denmark; Hospital; Denmark; Europe, EU; Nordic; OECD];
  9. [5] University of Southern Denmark
  10. [NORA names: SDU University of Southern Denmark; University; Denmark; Europe, EU; Nordic; OECD];

Abstract

Background: Survival among people with HIV (PWH) has vastly improved globally over the last few decades but remains lower than among the general population. We aimed to estimate time trends of survival among PWH and their families from 1995 to 2021. Methods: We conducted a registry-based, nationwide, population-based, matched cohort study. We included all Danish-born PWH from 1995 to 2021 who had been on antiretroviral therapy for 90 days, did not report intravenous drug use, and were not co-infected with hepatitis C (n = 4168). We matched population controls from the general population 10:1 to PWH by date of birth and sex (n = 41,680). For family cohorts, we identified siblings, mothers, and fathers of PWH and population controls. From Kaplan-Meier tables with age as time scale, we estimated survival from age 25. We compared PWH with population controls and families of PWH with families of population controls to calculate mortality rate ratios adjusted for sex, age, comorbidities, and education (aMRR). Findings: The median age of death among PWH increased from 27.5 years in 1995-1997 to 73.9 years (2010-2014), but thereafter survival increased only marginally. From 2015 to 2021, mortality was increased among PWH (aMRR 1.87 (95% CI: 1.65-2.11)) and siblings (aMRR: 1.25 (95% CI: 1.07-1.47)), mothers (aMRR: 1.30 (95% CI: 1.17-1.43)), and fathers (aMRR: 1.15 (95% CI: 1.03-1.29)) of PWH compared to their respective control cohorts. Mortality among siblings of PWH who reported heterosexual route of HIV transmission (aMRR: 1.51 (95% CI: 1.16-1.96)) was higher than for siblings of PWH who reported men who have sex with men as route of HIV transmission (aMRR 1.19 (95% CI: 0.98-1.46)). Interpretation: Survival among PWH improved substantially until 2010, after which it increased only marginally. This may partly be due to social and behavioural factors as PWH families also had higher mortality. Funding: Preben and Anna Simonsen's Foundation and Independent Research Fund Denmark.

Keywords

AMRR, Denmark, HIV, HIV transmission, Kaplan-Meier tables, PWH, age, age of death, antiretroviral therapy, behavioral factors, birth, calculated mortality rate ratios, co-infection, cohort, cohort study, comorbidities, comparing PWH, control, control cohort, days, death, decades, drug use, education, estimate survival, estimate time trends, factors, family, family cohort, family of populations, fathers, general population, hepatitis, hepatitis C, heterosexual route, higher mortality, identified siblings, intravenous drug use, matched population controls, median age, median age of death, men, mortality, mortality rate ratios, mothers, nationwide population-based cohort study, people, population, population controls, population-based, population-based cohort study, rate ratios, ratio, registry-based, routes of HIV transmission, scale, sex, siblings, study, survival, table, therapy, time, time scales, transmission, trends of survival, use, years

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