Frailty, Latent Health Profiles, and Antiretroviral Therapy: Predicting Success of Skilled Nursing Facility Care in an HIV Population.

This was an observational claims study, so it can show associations but cannot prove that frailty or ART use caused lost home time. The sample was limited to fee-for-service Medicare beneficiaries with HIV who had a post-acute skilled nursing stay, survived at least one day after discharge, and had qualifying enrollment before admission; it may not apply to Medicare Advantage or people who died sooner. HIV identification from claims may miss people who never sought HIV care or had only one antiretroviral fill, and it does not capture duration of HIV infection. Frailty and ART adherence were derived from claims before admission; ART fills do not prove medication was taken, may misclassify adherence, and can miss two-drug regimens. Health profiles were built from diagnoses ever recorded in the data and weighted conditions equally, so they may not fully represent severity or conditions outside the data. Most stays had zero days lost (75%), and results differed by age and model, making interpretation of specific subgroup findings uncertain.

Authors reported no conflicts of interest. The work was supported by NIH/NIA training and career development grants.

Do not conclude that frailty causes lost home time or that improving ART adherence will increase time at home. This study is observational, and ART associations varied by age.