Abstract
e19567 Background: With the advent combined anti-retroviral therapy (ART), the survival of people living with HIV has improved, thereby increasing their prevalence, while concurrently decreasing the incidence AIDS defining malignancies. Despite its decrease, AIDS-related Diffuse Large B-Cell Lymphoma (DLBCL) remains the 3rd most common malignancy in the HIV population and an important cause of cancer related morbidity and a leading cause cancer attributed mortality. Currently the treatment modalities between HIV and non-HIV DLBCL are similar, however a comparison of the infectious complications has never been assessed. We aim to explore the prevalence and outcomes of sepsis in persons living with HIV and DLBCL versus the non-HIV DLBCL patient population. Methods: We identified all adult DLBCL patients admitted between 2016–2018 from The Nationwide Inpatient Sample (NIS) with a primary diagnosis of sepsis. Patients with and without HIV were identified and compared for demographic differences and primary outcomes of inpatient mortality, length of stay (LOS) and hospital charges. Secondary outcomes studied included rates of septic shock, acidosis, Acute Kidney Injury (AKI), Tumor Lysis Syndrome (TLS) pancytopenia, anemia, neutropenia, protein energy malnutrition (PEM) and history of bone-marrow/stem-cell transplant. Statistics were performed using t-Test, chi-square test and multivariable logistic regression. Results: There was a total of 5740 HIV-DLBCL and 158,445 non-HIV-DLBCL inpatient admissions of which 480 (8.4%) and 16085 (10.1%) respectively had sepsis (p < 0.0001). Compared to non-HIV cohort, HIV-DLBCL patients were significantly younger (47.5 versus 67 years, p < 0.001), more likely to be male (66.7% vs 55.3%, p = 0.02), Black (43% vs 7.7%) or Hispanic (18% vs 11%) (p < 0.001), more likely to be on Medicaid (44.9% vs 8.2%, p < 0.001) and lived-in low-income zip-codes (p < 0.0001). Overall adjusted inpatient mortality was not significantly different between HIV and non-HIV groups (14.6% vs 16.9%, p = NS). But HIV-DLBCL patients had significantly high Chalrson co-morbidity index (p < .0001), longer inpatient LOS (8.75 vs 8.65 days, p < 0.0001) and higher total hospital charges (average $5338 higher for each admission, p < 0.0001). HIV-DLBCL cohort also reported significantly higher TLS (7.3% vs 2.6%, p = 0.005) and PEM (42.7% vs 28.9%, p = 0.004). Other secondary outcomes were not significantly different between the groups. Conclusions: Demographic differences between the two cohorts are reflective of known racial & socio-economic disparities associated with HIV. Lower rates of sepsis in HIV cohort were not translated into improved inpatient mortality. Longer LOS and hospitalization charges in HIV patients likely due to high comorbidity burden.
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