Impact of Delayed HIV Diagnosis and Treatment on Dementia Risk in Later Life - Takeaways - MDSpire

Impact of Delayed HIV Diagnosis and Treatment on Dementia Risk in Later Life

  • By

  • Jennifer O Lam

  • Catherine Lee

  • Craig E Hou

  • Dongjie Fan

  • Haihong Hu

  • Errol Lopez

  • Alexandra Lea

  • William J Towner

  • Michael A Horberg

  • Michael J Silverberg

  • January 22, 2026

  • 0 min

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  • 1

    Delayed HIV diagnosis and treatment, indicated by low pre-ART CD4 counts, is linked to a higher risk of developing dementia in older adults.

  • 2

    In a study of 21,354 adults with HIV, 30% had pre-ART CD4 counts below 200 cells/µL, correlating with increased dementia diagnoses.

  • 3

    The adjusted hazard ratio for dementia associated with low pre-ART CD4 count was 1.33, indicating a significant risk increase.

  • 4

    CD4 recovery after ART initiation reduced but did not eliminate dementia risk, with an adjusted hazard ratio of 1.17.

  • 5

    The findings underscore the importance of early HIV screening and prompt ART initiation to support cognitive health in older adults.

Original Source(s)

Impact of Delayed HIV Diagnosis and Treatment on Dementia Risk in Later Life

  • by Jennifer O Lam, Catherine Lee, Craig E Hou, Dongjie Fan, Haihong Hu, Errol Lopez, Alexandra Lea, William J Towner, Michael A Horberg, Michael J Silverberg

  • January 22, 2026

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