title: Temporal Trends in Age at HIV Diagnosis in Cohorts in the United States, the Caribbean, and Central and South America.
abstract: In the United States (USA), the age of those newly diagnosed with HIV is changing, particularly among men who have sex with men (MSM). A retrospective analysis included HIV-infected adults from seven sites in the Caribbean, Central and South America network (CCASAnet) and the Vanderbilt Comprehensive Care Clinic (VCCC-Nashville, Tennessee, USA). We estimated the proportion of patients <25 years at HIV diagnosis by calendar year among the general population and MSM. 19,466 (CCASAnet) and 3,746 (VCCC) patients were included. The proportion <25 years at diagnosis in VCCC increased over time for both the general population and MSM (p < 0.001). Only in the Chilean site for the general population and the Brazilian site for MSM were similar trends seen. Subjects <25 years of age at diagnosis were less likely to be immunocompromised at enrollment at both the VCCC and CCASAnet. Recent trends in the USA of greater numbers of newly diagnosed young patients were not consistently observed in Latin America and the Caribbean. Prevention efforts tailored to young adults should be increased.
authors.affiliation: Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
authors.forename: Brenda
authors.initials: B
authors.lastname: Crabtree-Ramírez
authors.forename: Yanink Neried Caro
authors.initials: YN
authors.lastname: Vega
authors.forename: Bryan E
authors.initials: BE
authors.lastname: Shepherd
authors.forename: Megan
authors.initials: M
authors.lastname: Turner
authors.forename: Gabriela
authors.initials: G
authors.lastname: Carriquiry
authors.forename: Valeria
authors.initials: V
authors.lastname: Fink
authors.forename: Paula M
authors.initials: PM
authors.lastname: Luz
authors.forename: Claudia P
authors.initials: CP
authors.lastname: Cortes
authors.forename: Vanessa
authors.initials: V
authors.lastname: Rouzier
authors.forename: Denis
authors.initials: D
authors.lastname: Padgett
authors.forename: Karu
authors.initials: K
authors.lastname: Jayathilake
authors.forename: Catherine C
authors.initials: CC
authors.lastname: McGowan
authors.forename: Anna K
authors.initials: AK
authors.lastname: Person
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000554:Ambulatory Care Facilities; D017691:Caribbean Region / Q000453:epidemiology; D002489:Central America / Q000453:epidemiology; D005260:Female; D015658:HIV Infections / Q000175:diagnosis* / Q000453:epidemiology; D018451:Homosexuality, Male / Q000523:psychology / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance / Q000379:methods*; D012189:Retrospective Studies; D012307:Risk Factors; D013020:South America / Q000453:epidemiology; D013714:Tennessee / Q000453:epidemiology; D014481:United States / Q000453:epidemiology; D055815:Young Adult