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Abstract
Public health benefits of expanded HIV screening will be adequately realized only if an early diagnosis is followed by prompt linkage to care. We characterized rates and factors associated with failure to enter into medical care within three months of HIV diagnosis and assessed the predictors of time to enter care over a follow-up period of up to 60 months. The study cohort included 3697 South Carolina (SC) residents’≥13 years who were newly HIV-diagnosed in 2004–2008. Date of first laboratory report of CD4+ T-cell count or viral load (VL) test after 30 days of confirmatory HIV diagnosis was used to define time to linkage to care. Results showed that of the total 3697 persons, 1768 (48%) entered care within three months, 1115 (30%) in four–12 months after diagnosis, and 814 (22%) failed to initiate care within 12 months of HIV diagnosis. At the end of study follow-up period of up to 60 months from the date of HIV diagnosis, 472/3697 (13%) individuals remained out of care. Multivariable Cox proportional hazards analysis showed that compared with hospitals, time to enter care was shorter in those diagnosed at state mental health/correctional facilities (adjusted hazards ratio [aHR] 1.16; 95% confidence interval [CI] 1.02–1.34) and longer in those diagnosed at county health departments (aHR 0.87; 95% CI 0.80–0.96) and at “Other/unknown” facilities (aHR 0.79; 95% CI 0.70–0.89). Time to entry into care was longer for men (aHR 0.82; 95% CI 0.75–0.89) compared with women, blacks (aHR 0.91; 95% CI 0.83–0.98) compared with whites, and males who have sex with males (MSM) (aHR 0.89; 95% CI 0.80–0.98) compared with heterosexual exposure. Delayed entry into HIV care remains a challenge in controlling HIV transmission in SC. Better integration of testing and care facilities could improve the proportion of newly HIV-diagnosed persons who enter care in a timely manner.
