Adam W. BartlettThahira Jamal MohamedTavitiya SudjaritrukNia KurniatiRevathy NallusamyRawiwan HansudewechakulPenh Sun LyKhanh Huu TruongPagakrong LumbiganonThanyawee PuthanakitKulkanya ChokephaibulkitLam Van NguyenViet Chau DoNagalingeswaran KumarasamyNik Khairulddin Nik YusoffMoy Siew FongDewi Kumara WatiAnnette H. SohnAzar KariminiaVHS Medical Centre IndiaNational Hospital of Pediatrics HanoiUniversitas UdayanaUniversitas IndonesiaChulalongkorn UniversityKirby InstituteFaculty of Medicine, Khon Kaen UniversityKuala Lumpur HospitalFaculty of Medicine, Siriraj Hospital, Mahidol UniversityChiang Mai UniversityChildren's Hospital 2Children's Hospital 1Hospital Raja Perempuan Zainab IIFoundation for AIDS ResearchChiangrai Prachanukroh HospitalHospital LikasNational Center for HIV/AIDSPenang Hospital2020-01-272020-01-272019-03-01Pediatric Infectious Disease Journal. Vol.38, No.3 (2019), 287-29215320987089136682-s2.0-85061251641https://repository.li.mahidol.ac.th/handle/20.500.14594/51844© 2018 Wolters Kluwer Health, Inc. All rights reserved. Background: Perinatally HIV-infected adolescents (PHIVA) are exposed to a chronic systemic infection and long-term antiretroviral therapy (ART), leaving them susceptible to morbidities associated with inflammation, immunodeficiency and drug toxicity. Methods: Data collected 2001 to 2016 from PHIVA 10-19 years of age within a regional Asian cohort were analyzed using competing risk time-to-event and Poisson regression analyses to describe the nature and incidence of morbidity events and hospitalizations and identify factors associated with disease-related, treatment-related and overall morbidity. Morbidity was defined according to World Health Organization clinical staging criteria and U.S. National Institutes of Health Division of AIDS criteria. Results: A total 3,448 PHIVA contributed 17,778 person-years. Median age at HIV diagnosis was 5.5 years, and ART initiation was 6.9 years. There were 2,562 morbidity events and 307 hospitalizations. Cumulative incidence for any morbidity was 51.7%, and hospitalization was 10.0%. Early adolescence was dominated by disease-related infectious morbidity, with a trend toward noninfectious and treatment-related morbidity in later adolescence. Higher overall morbidity rates were associated with a CD4 count <350 cells/μL, HIV viral load ≥10,000 copies/mL and experiencing prior morbidity at age <10 years. Lower overall morbidity rates were found for those 15-19 years of age compared with 10-14 years and those who initiated ART at age 5-9 years compared with <5 or ≥10 years. Conclusions: Half of our PHIVA cohort experienced a morbidity event, with a trend from disease-related infectious events to treatment-related and noninfectious events as PHIVA age. ART initiation to prevent immune system damage, optimize virologic control and minimize childhood morbidity are key to limiting adolescent morbidity.Mahidol UniversityMedicineArticleSCOPUS10.1097/INF.0000000000002208