TY - JOUR
T1 - Evolution of CD4 T-Cell Count With Age in a Cohort of Young People Growing Up With Perinatally Acquired Human Immunodeficiency Virus
AU - Castro, Hannah
AU - Sabin, Caroline
AU - Collins, Intira Jeannie
AU - Okhai, Hajra
AU - Sandgaard, Katrine Schou
AU - Prime, Katia
AU - Foster, Caroline
AU - Le Prevost, Marthe
AU - Crichton, Siobhan
AU - Klein, Nigel
AU - Judd, Ali
AU - on behalf of the Collaborative HIV Paediatric Study and the UK Collaborative HIV Cohort Study
N1 - Publisher Copyright:
© The Author(s) 2023. Published by Oxford University Press on behalf of Infectious Diseases Society of America.
PY - 2024/3
Y1 - 2024/3
N2 - Background. Recent studies have shown a decrease in CD4 count during adolescence in young people with perinatally acquired human immunodeficiency virus (HIV, PHIV). Methods. Young people with PHIV in the United Kingdom, followed in the Collaborative HIV Paediatric Study who started antiretroviral therapy (ART) from 2000 onward were included. Changes in CD4 count over time from age 10 to 20 years were analyzed using mixed-effects models, and were compared to published CD4 data for the gerneral population. Potential predictors were examined and included demographics, age at ART start, nadir CD4 z score (age-adjusted) in childhood, and time-updated viral load. Results. Of 1258 young people with PHIV included, 669 (53%) were female, median age at ART initiation was 8.3 years, and the median nadir CD4 z score was −4.0. Mean CD4 count was higher in young people with PHIV who started ART before age 10 years and had a nadir CD4 z score ≥−4; these young people with PHIV had a decline in CD4 count after age 10 that was comparable to that of the general population. Mean CD4 count was lower in young people with PHIV who had started ART before age 10 and had a nadir CD4 z score <−4; for this group, the decline in CD4 count after age 10 was steeper over time. Conclusions. In children, in addition to starting ART at an early age, optimizing ART to maintain a higher CD4 z score during childhood may be important to maximizing immune reconstitution later in life.
AB - Background. Recent studies have shown a decrease in CD4 count during adolescence in young people with perinatally acquired human immunodeficiency virus (HIV, PHIV). Methods. Young people with PHIV in the United Kingdom, followed in the Collaborative HIV Paediatric Study who started antiretroviral therapy (ART) from 2000 onward were included. Changes in CD4 count over time from age 10 to 20 years were analyzed using mixed-effects models, and were compared to published CD4 data for the gerneral population. Potential predictors were examined and included demographics, age at ART start, nadir CD4 z score (age-adjusted) in childhood, and time-updated viral load. Results. Of 1258 young people with PHIV included, 669 (53%) were female, median age at ART initiation was 8.3 years, and the median nadir CD4 z score was −4.0. Mean CD4 count was higher in young people with PHIV who started ART before age 10 years and had a nadir CD4 z score ≥−4; these young people with PHIV had a decline in CD4 count after age 10 that was comparable to that of the general population. Mean CD4 count was lower in young people with PHIV who had started ART before age 10 and had a nadir CD4 z score <−4; for this group, the decline in CD4 count after age 10 was steeper over time. Conclusions. In children, in addition to starting ART at an early age, optimizing ART to maintain a higher CD4 z score during childhood may be important to maximizing immune reconstitution later in life.
KW - adult
KW - CD4 T cell
KW - child
KW - HIV
KW - perinatal
UR - http://www.scopus.com/inward/record.url?scp=85188297950&partnerID=8YFLogxK
U2 - 10.1093/cid/ciad626
DO - 10.1093/cid/ciad626
M3 - Journal article
C2 - 37820036
AN - SCOPUS:85188297950
SN - 1058-4838
VL - 78
SP - 690
EP - 701
JO - Clinical Infectious Diseases
JF - Clinical Infectious Diseases
IS - 3
ER -