Hepatocellular carcinoma (HCC) is increasingly reported in patients with nonalcoholic fatty liver disease (NAFLD). Our aim was to assess the prevalence and mortality of patients with NAFLD-HCC. We examined Surveillance, Epidemiology and End Results (SEER) registries (2004)(2005)(2006)(2007)(2008)(2009)) with Medicare-linkage files for HCC, which was identified by the International Classification of Diseases for Oncology, third edition codes using topography and morphology codes 8170-8175. Medicare-linked data was used to identify NAFLD, hepatitis C virus (HCV), hepatitis B virus (HBV), alcoholic liver disease (ALD), and other liver disease using International Classification of Diseases, Ninth Revision, Clinical Modification codes. NAFLD was also defined by clinical diagnosis (cryptogenic cirrhosis, obese-diabetics with cryptogenic liver disease). A logistic regression model was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs) for risk of HCC. In addition, adjusted hazard ratios for 1-year mortality were estimated by Cox's proportional hazard regression. A total of 4,929 HCC cases and 14,937 controls without HCC were included. Of the HCC cases, 54.9% were related to HCV, 16.4% to ALD, 14.1% to NAFLD, and 9.5% to HBV. Across the 6-year period (2004 to 2009), the number of NAFLD-HCC showed a 9% annual increase. NAFLD-HCC were older, had shorter survival time, more heart disease, and were more likely to die from their primary liver cancer (all P < 0.0001). Of those who received a transplant after HCC (n 5 488), only 5% were related to NAFLD-HCC. In multivariate analysis, NAFLD increased the risk of 1-year mortality (OR, 1.21; 95% CI: 1.01-1.45). Additionally, older age, lower income, unstaged HCC increased risk of 1-year mortality while receiving a liver transplant (LT), and having localized tumor stage were protective (all P < 0.05). Conclusions: NAFLD is becoming a major cause of HCC in the United States. NAFLD HCC is associated with shorter survival time, more advanced tumor stage, and lower possibility of receiving a LT.

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Background Neutralizing monoclonal antibody (NmAb) treatments have received emergency use authorization to treat patients with mild or moderate COVID-19 infection. To date, no real- world data about the efficacy of NmAb has been reported from clinical practice. We assessed the impact of NmAb treatment given in the outpatient clinical practice setting on hospital utilization. Methods Electronic medical records were used to identify adult COVID-19 patients who received NmAbs [bamlanivimab (BAM) or casirivimab and imdevimab (REGN-COV2)] and historic COVID-19 controls. Post-index hospitalization rates were compared. Results 707 confirmed COVID-19 patients received NmAb and 1709 historic COVID-19 controls were included; 553 (78%) received BAM, 154 (22%) received REGN-COV2. Patients receiving NmAb infusion had significantly lower hospitalization rate (5.8% vs. 11.4%, p&lt;0.0001); a shorter length of stay if hospitalized (mean 5.2 days vs. 7.4 days, p=0.02), and fewer ED visits within 30 days post-index (8.1% vs 12.3%, p=0.003) than controls. Hospitalization-free survival was significantly longer in NmAb patients compared to controls (p&lt;0.0001). There was a trend towards a lower hospitalization rate among patients who received NmAb within 2-4 days after symptom onset. In multivariate analysis, having received a NmAb transfusion was independently associated with a lower risk of hospitalization after adjustment for age, sex, race, BMI and referral source: adjusted hazard ratio (95% CI) = 0.54 (0.38 – 0.79), p=0.0012. Overall mortality was not different between the two groups. Conclusions and Relevance NmAb treatment reduced hospital utilization especially when received within a few days of symptom onset. Further study is needed to validate these findings.