Racial and Health Disparities among Cirrhosis-related Hospitalizations in the USA

Differential candidate characteristics associated with increasing ALD and MASH among liver transplant listings in the US

BACKGROUND AND AIM

Alcohol-associated liver disease (ALD) and metabolic associated steatohepatitis (MASH) are leading indications for liver transplant (LT). Data are limited on their trends and association with candidate characteristics.

METHODS AND RESULTS

UNOS database (2002-22) examined on proportion of ALD or of NASH etiology among LT listings comparing 2002-11 vs. 2012-22. Of 169,385 listings, 41,558 (24.5 %) and 21,789 (12.9 %) listed for ALD and MASH respectively. Proportion of ALD increased 2 folds between 2002-11 and 2012-22. Stratified multivariable logistic regression models showed age <35 yrs., females, blacks and Asians, non-diabetics, education below high school, Medicaid insurance, and MELD > 35 with highest increase in ALD. Candidates listed with ALD vs. others had lower 90-d waitlist mortality, SHR 0.85 [0.83-0.87]. Although, AH as listing diagnosis only contributed to 3.2 % of ALD candidates, this subtype of ALD was associated with increasing ALD trends among candidates <35 yrs. of age, with college or higher education, and MELD ≥35. The proportion of MASH increased 3 folds between 2002-11 and 2012-22. Stratified models showed age 35-64 yrs., males, blacks and Asians, diabetics, college or above education, Medicare insurance, and MELD < 25 with highest increase in MASH. Candidates listed with MASH vs. others had similar 90-d waitlist mortality, SHR 0.99 [0.97-1.03].

CONCLUSIONS

MASH and ALD in LT listing increased, with differential increase based on candidate characteristics. These findings are relevant in organ allocation and designing public policies to control MASH and ALD.

Disparities in Alcohol-Associated Liver Disease Hospital Encounters Amongst a Texas-Based Cohort of Patients

INTRODUCTION

Alcohol-associated liver disease (ALD) disproportionately impacts men, racial and ethnic minorities, and individuals of low socioeconomic status; however, it's unclear how recent increases in ALD burden have impacted these disparities. We aimed to describe trends in racial, ethnic and socioeconomic disparities in alcohol-associated hospital encounters.

METHODS

We conducted a retrospective cohort study of adult hospital encounters with alcohol-associated diagnoses from three health systems between January 2016 and December 2021. The cohort was divided into three eras: a 'Historical Era,' (Oct 2016-June 2018, used only for trends); 'Era 1' (July 2018-March 2020); and 'Era 2' (April 2020-December 2021). Kaplan Meier and Cox regression analyses were performed to identify factors associated with overall survival.

RESULTS

We identified 19,295 individuals with alcohol-associated encounters (44.7% White, 29.8% Hispanic, and 21.8% non-Hispanic Black (NHB) individuals), with a greater increase observed between eras 1 and 2 than the historical era and Era 1 (8.7% vs. 5.0%, p < 0.01). By age and sex, the greatest increases in encounters were observed in the youngest and oldest females but only the oldest males. By race and ethnicity, Hispanic individuals had greater increases in encounters compared to Black and White individuals (14.8% vs. 7.5% and 6.3%, p < 0.01). Older age (aSHR: 1.03, 95% CI: 1.03-1.0), higher MELD (aSHR: 1.08, 95% CI: 1.0-1.09), hepatic encephalopathy (aSHR: 1.42, 95% CI: 1.06-1.90), and hepatocellular carcinoma (HCC) (aSHR: 3.20, 95% CI: 2.29-4.49) were associated with increased mortality.

CONCLUSION

The highest increases of alcohol-associated encounters were observed amongst young Hispanic and NHB women, highlighting variation in trends by age, sex, race and ethnicity. These disparities merit further investigation to elucidate underlying mechanisms and develop tailored interventions to improve ALD burden and outcomes.

Advances in the management of alcohol-associated liver disease

Alcohol-associated liver disease (ALD) is a significant global health challenge, encompassing a spectrum from steatotic liver disease to cirrhosis and alcohol-associated hepatitis, and contributed to 25% of global cirrhosis deaths in 2019. The identification of both modifiable (e.g. heavy drinking, metabolic syndromes) and non-modifiable risk factors (e.g. genetic predispositions) is crucial for effective disease management. Alcohol use assessment and treatment, by using both behavioral therapy and pharmacotherapeutic modalities, nutrition support, and optimization of liver disease modifiers, form the cornerstone of management. Advances in medical therapies, such as fecal microbiota transplantation and novel agents such as IL-22, are being explored for their therapeutic potential. A unifying theme in ALD care is the need for a personalized approach to management, accounting for the spectrum of the disease and individual patient characteristics, to tailor interventions effectively. Finally, it is essential to address the challenges to effective ALD treatment, including socioeconomic, logistical, and stigma-related barriers, to improve patient outcomes. This review discusses the current knowledge on ALD, including epidemiology, pathophysiology, risk factors, and management strategies, highlighting the critical role of integrated care models.

Racial and ethnic disparities in the natural history of alcohol-associated liver disease in the United States

BACKGROUND

Outcomes in alcohol-associated liver disease (ALD) are influenced by several race and ethnic factors, yet its natural history across the continuum of patients in different stages of the disease is unknown.

METHODS

We conducted a retrospective cohort study of U.S. adults from 2011 to 2018, using three nationally representative databases to examine potential disparities in relevant outcomes among racial and ethnic groups. Our analysis included logistic and linear regressions, along with competing risk analysis.

RESULTS

Black individuals had the highest daily alcohol consumption (12.6 g/day) while Hispanic participants had the largest prevalence of heavy episodic drinking (33.5%). In a multivariable-adjusted model, Hispanic and Asian participants were independently associated with a higher ALD prevalence compared to Non-Hispanic White interviewees (OR: 1.4, 95% CI: 1.1-1.8 and OR: 1.5 95% CI:1.1-2.0, respectively), while Blacks participants had a lower ALD prevalence (OR: .7 95% CI: .6-.9), and a lower risk of mortality during hospitalization due to ALD (OR: .83 95% CI: .73-.94). Finally, a multivariate competing-risk analysis showed that Hispanic ethnicity had a decreased probability of liver transplantation if waitlisted for ALD (SHR: .7, 95% CI: .6-.8) along with female Asian population (HR: .40, 95% CI: .26-.62).

CONCLUSIONS

After accounting for key social and biological health determinants, the Hispanic population showed an increased risk of ALD prevalence, even with lower alcohol consumption. Additionally, Hispanic and Asian female patients had reduced access to liver transplantation compared to other enlisted patients.

Changes in mortality due to Chronic Liver Diseases (CLD) during the COVID-19 pandemic: Data from the United States' National Vital Statistics System

INTRODUCTION

We assessed chronic liver disease (CLD)-related mortality in the U.S. using death data (2011-2021) obtained from National Vital Statistics System (NVSS). The average annual percentage change (AAPC) from the models selected by Joinpoint regression analysis over the pre-pandemic (2011-2019) and the 2019-2021 were reported because non-linear trend in death rates were observed over the 2011-2021. Liver-specific death was defined as an underlying cause of death and Chronic liver disease (CLD)-related death was defined as any cause of death. During the pre-pandemic, age-standardized HCC- and cirrhosis-specific death rates were annually increased by AAPC = +1.18% (95% confidence interval, 0.34% to 2.03%) and AAPC = +1.95% (1.56% to 2.35%). In contrast, during the 2019-2021, the AAPC in age-standardized cirrhosis-specific death rate (per 100,000) accelerated by up to AAPC +11.25% (15.23 in 2019 to 18.86 in 2021) whereas that in age-standardized HCC-specific death rate slowed to -0.39 (-1.32% to 0.54%) (3.86 in 2019 to 3.84 in 2021). Compared to HCC-specific deaths, cirrhosis-specific deaths were more likely to be non-Hispanic white (72.4% vs. 62.0%) and non-Hispanic American Indian and Alaska native (AIAN) (2.2% vs. 1.1%) and have NAFLD (45.3% vs. 12.5%) and ALD (27.6% vs. 22.0%). During the 2019-2021, the age-standardized HCV- and HBV-related death rate stabilized, whereas the age-standardized NAFLD- and ALD-related deaths rate increased to 20.16 in 2021 (AAPC = +12.13% [7.76% to 16.68%]) and to 14.95 in 2021 (AAPC = +18.30% [13.76% to 23.03%]), which were in contrast to much smaller incremental increases during the pre-pandemic (AAPC = +1.82% [1.29% to 2.35%] and AAPC = +4.54% [3.97% to 5.11%]), respectively). The most pronounced rise in the age-standardized NAFLD-related death rates during the pandemic was observed among AIAN (AAPC = +25.38%), followed by non-Hispanic White female (AAPC = +14.28%), whereas the age-standardized ALD-related death rates during the pandemic were highest among AIAN (AAPC = +40.65%), followed by non-Hispanic Black female (AAPC = +26.79%).

CONCLUSIONS

COVID-19 pandemic had a major negative impact on cirrhosis-specific and CLD-related mortality in the U.S. with significant racial and gender disparities.

Changing landscape of alcohol-associated liver disease in younger individuals, women, and ethnic minorities

Alcohol use is the most important determinant of the development of alcohol-associated liver disease (ALD) and of predicting long-term outcomes in those with established liver disease. Worldwide, the amount, type, and pattern of use of alcohol vary. Alcohol use and consequent liver disease have been increasing in certain ethnic groups especially Hispanics and Native Americans, likely due to variations in genetics, cultural background, socio-economic status, and access to health care. Furthermore, the magnitude and burden of ALD have been increasing especially in the last few years among females and young adults who are at the prime of their productivity. It is critical to recognize the problem and care for these patients integrating cultural aspects in liver clinics. At the federal level, a societal approach is needed with the implementation of public health policies aiming to reduce alcohol consumption in the community. By addressing these challenges and promoting awareness, we can strive to reduce the burden of ALD, especially in high-risk demographic groups to improve their long-term health outcomes. Finally, we need studies and quality research examining these changing landscapes of demographics in ALD as a basis for developing therapeutic targets and interventions to reduce harmful drinking behaviours in these high-risk demographic groups.

Pragmatic strategies to address health disparities along the continuum of care in chronic liver disease

Racial, ethnic, and socioeconomic disparities exist in the prevalence and natural history of chronic liver disease, access to care, and clinical outcomes. Solutions to improve health equity range widely, from digital health tools to policy changes. The current review outlines the disparities along the chronic liver disease health care continuum from screening and diagnosis to the management of cirrhosis and considerations of pre-liver and post-liver transplantation. Using a health equity research and implementation science framework, we offer pragmatic strategies to address barriers to implementing high-quality equitable care for patients with chronic liver disease.

Care for Vulnerable Populations with Chronic Liver Disease: A Safety-Net Perspective

Safety-net hospitals (SNHs) and facilities are the cornerstone of healthcare services for the medically underserved. The burden of chronic liver disease-including end-stage manifestations of cirrhosis and liver cancer-is high and rising among populations living in poverty who primarily seek and receive care in safety-net settings. For many reasons related to social determinants of health, these individuals often present with delayed diagnoses and disease presentations, resulting in higher liver-related mortality. With recent state-based policy changes such as Medicaid expansion that impact access to insurance and critical health services, an overview of the body of literature on SNH care for chronic liver disease is timely and informative for the liver disease community. In this narrative review, we discuss controversies in the definition of a SNH and summarize the known disparities in the cascade of the care and management of common liver-related conditions: (1) steatotic liver disease, (2) liver cancer, (3) chronic viral hepatitis, and (4) cirrhosis and liver transplantation. In addition, we review the specific impact of Medicaid expansion on safety-net systems and liver disease outcomes and highlight effective provider- and system-level interventions. Lastly, we address remaining gaps and challenges to optimizing care for vulnerable populations with chronic liver disease in safety-net settings.

The Changing Epidemiology of Alcohol-Associated Liver Disease: Gender, Race, and Risk Factors

Cases of alcohol-associated liver disease (ALD) are increasing at a steady rate in the United States with more patients presenting with alcohol-associated hepatitis and alcohol-associated cirrhosis. While alcohol use has increased across many demographic groups, women are suffering from a greater increase in alcohol use disorder (AUD), and are at a greater risk of ALD due to pathophysiological differences which include absorption of alcohol, first pass metabolism, and hormonal differences. Differences across race have also been found with Native Americans and Hispanics suffering from some of the largest increases in ALD rates. Younger adults are heavily impacted by rising rates of both AUD and ALD. Comorbidities such as obesity and NASH have been shown to augment the deleterious effects of AUD and ALD, resulting in more advanced liver disease. Finally, COVID-19 and policies related to the pandemic have resulted in increased AUD across many cohorts, which have resulted in marked increases in ALD. In conclusion, ALD rates are rising, with young people and women particularly impacted.

Covid-19 and alcohol associated liver disease

The COVID-19 pandemic is having substantial impacts on the health status of individuals with alcohol use disorder (AUD) and alcohol-associated liver disease (ALD). AUD and ALD have both been impacted throughout the pandemic, with increases in alcohol use during the early stages of the pandemic, reduced access to treatment during the mid-pandemic, and challenges in managing the downstream effects in the post-COVID era. This review will focus on how the COVID-19 pandemic has impacted AUD and ALD epidemiology and access to treatment, and will discuss to address this rising AUD and ALD disease burden.