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Disparities in mortality for chronic liver disease among Asian subpopulations in the United States from 2007 to 2016.

ABSTRACT: The Asian American population is characterized by remarkable diversity. Studying Asians as an aggregate group may obscure clinically meaningful heterogeneity. We performed a population-based study using data from the US National Vital Statistics System. We determined the trends in age-standardized mortality rates for chronic liver disease stratified by aetiology among the most populous US-based Asian subgroups (Asian Indians, Chinese, Filipino, Japanese, Korean and Vietnamese) and compared it to non-Hispanic whites. Annual percentage change was calculated to determine temporal mortality patterns using joinpoint analysis. Hepatitis C virus-related mortality rates were higher in non-Hispanic whites compared to individual Asian subgroups, but a sharp decline in mortality rates was noted in 2014 among non-Hispanic whites and all Asian subgroups. Age-standardized hepatitis B virus-related mortality rates were higher in all Asian subgroups as compared to non-Hispanic whites in 2016, with the highest mortality among Vietnamese followed by Chinese. Mortality rates for alcoholic liver disease have been steadily trending upwards in all Asian subgroups, with the highest mortality in Japanese. Overall, age-standardized cirrhosis-related mortality rates were highest in non-Hispanic whites, followed by Japanese, and more distantly by Vietnamese and other subgroups. However, hepatocellular carcinoma-related mortality rates were higher in most Asian subgroups led by Vietnamese, Japanese and Koreans compared to non-Hispanic whites. In this population-based study utilizing a nationally representative database, we demonstrated a marked heterogeneity in the mortality rates of aetiology-specific chronic liver disease among Asian subgroups in the United States.

SUBMITTER: Li AA

PROVIDER: S-EPMC6709979 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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Disparities in mortality for chronic liver disease among Asian subpopulations in the United States from 2007 to 2016.

Li Andrew A AA Kim Donghee D Kim Won W Dibba Pratima P Wong Katherine K Cholankeril George G Jacobson Ira M IM Younossi Zobair M ZM Ahmed Aijaz A

Journal of viral hepatitis 20180911 12

The Asian American population is characterized by remarkable diversity. Studying Asians as an aggregate group may obscure clinically meaningful heterogeneity. We performed a population-based study using data from the US National Vital Statistics System. We determined the trends in age-standardized mortality rates for chronic liver disease stratified by aetiology among the most populous US-based Asian subgroups (Asian Indians, Chinese, Filipino, Japanese, Korean and Vietnamese) and compared it to ...[more]

PMID: 30112849

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Project description:Background & aimsAlthough treatment of hepatitis C virus (HCV) infection has improved, the prevalence of alcoholic liver disease (ALD) has been increasing, so we need an updated estimate of the burden and etiology-specific mortality of chronic liver diseases. We studied trends in age-standardized mortality of chronic liver diseases in adults at least 20 years old in the United States from 2007 through 2016.MethodsWe collected data from the US Census and National Center for Health Statistics mortality records and identified individuals with HCV infection, ALD, nonalcoholic fatty liver disease, or hepatitis B virus infection using ICD-10 codes. We obtained temporal mortality rate patterns using joinpoint trend analysis with estimates of annual percentage change (APC).ResultsAge-standardized HCV-related mortality increased from 7.17 per 100,000 persons in 2007 to 8.14 per 100,000 persons in 2013, followed by a marked decrease in the time period at which patients began receiving treatment with direct-acting antiviral agents (from 8.09 per 100,000 persons in 2014 to 7.15 per 100,000 persons in 2016). The APC in HCV mortality increased 2.0%/year from 2007 through 2014 but decreased 6.4%/year from 2014 through 2016. In contrast, age-standardized mortality increased for ALD (APC 2.3% from 2007 through 2013 and APC 5.5% from 2013 through 2016) and nonalcoholic fatty liver disease (APC 6.1% from 2007 through 2013 and APC 11.3% from 2013 through 2016). Mortality related to hepatitis B virus decreased steadily from 2007 through 2016, with an average APC of -2.1% (95% CI -3.0 to -1.2). Etiology-based mortality in minority populations was higher. HCV-related mortality (per 100,000 persons) was highest in non-Hispanic blacks (10.28) and whites (6.92), followed by Hispanics (5.94), and lowest in non-Hispanic Asians (2.33). Non-Hispanic Asians had higher mortality for hepatitis B virus infection (2.82 per 100,000 vs 1.02 for non-Hispanic blacks and 0.47 for non-Hispanic whites).ConclusionIn our population-based analysis of chronic liver disease mortality in the United States, the decrease in HCV-related mortality coincided with the introduction of direct-acting antiviral therapies, whereas mortality from ALD and nonalcoholic fatty liver disease increased during the same period. Minorities in the United States have disproportionately higher mortality related to chronic liver disease.

Project description:ObjectiveTo describe liver disease related mortality in the United States during 1999-2016 by age group, sex, race, cause of liver disease, and geographic region.DesignObservational cohort study.SettingDeath certificate data from the Vital Statistics Cooperative, and population data from the US Census Bureau compiled by the Center for Disease Control and Prevention's Wide-ranging Online Data for Epidemiologic Research (1999-2016).ParticipantsUS residents.Main outcome measureDeaths from cirrhosis and hepatocellular carcinoma, with trends evaluated using joinpoint regression.ResultsFrom 1999 to 2016 in the US annual deaths from cirrhosis increased by 65%, to 34?174, while annual deaths from hepatocellular carcinoma doubled to 11?073. Only one subgroup-Asians and Pacific Islanders-experienced an improvement in mortality from hepatocellular carcinoma: the death rate decreased by 2.7% (95% confidence interval 2.2% to 3.3%, P<0.001) per year. Annual increases in cirrhosis related mortality were most pronounced for Native Americans (designated as "American Indians" in the census database) (4.0%, 2.2% to 5.7%, P=0.002). The age adjusted death rate due to hepatocellular carcinoma increased annually by 2.1% (1.9% to 2.3%, P<0.001); deaths due to cirrhosis began increasing in 2009 through 2016 by 3.4% (3.1% to 3.8%, P<0.001). During 2009-16 people aged 25-34 years experienced the highest average annual increase in cirrhosis related mortality (10.5%, 8.9% to 12.2%, P<0.001), driven entirely by alcohol related liver disease. During this period, mortality due to peritonitis and sepsis in the setting of cirrhosis increased substantially, with respective annual increases of 6.1% (3.9% to 8.2%) and 7.1% (6.1% to 8.4%). Only one state, Maryland, showed improvements in mortality (-1.2%, -1.7% to -0.7% per year), while many, concentrated in the south and west, observed disproportionate annual increases: Kentucky 6.8% (5.1% to 8.5%), New Mexico 6.0% (4.1% to 7.9%), Arkansas 5.7% (3.9% to 7.6%), Indiana 5.0% (3.8% to 6.1%), and Alabama 5.0% (3.2% to 6.8%). No state showed improvements in hepatocellular carcinoma related mortality, while Arizona (5.1%, 3.7% to 6.5%) and Kansas (4.3%, 2.8% to 5.8%) experienced the most severe annual increases.ConclusionsMortality due to cirrhosis has been increasing in the US since 2009. Driven by deaths due to alcoholic cirrhosis, people aged 25-34 have experienced the greatest relative increase in mortality. White Americans, Native Americans, and Hispanic Americans experienced the greatest increase in deaths from cirrhosis. Mortality due to cirrhosis is improving in Maryland but worst in Kentucky, New Mexico, and Arkansas. The rapid increase in death rates among young people due to alcohol highlight new challenges for optimal care of patients with preventable liver disease.

Project description:ImportanceRacial disparities are well documented in cancer care. Overall, in the US, Black patients historically have higher rates of mortality after surgery than White patients. However, it is unknown whether racial disparities in mortality after cancer surgery have changed over time.ObjectiveTo examine whether and how disparities in mortality after cancer surgery have changed over 10 years for Black and White patients overall and for 9 specific cancers.Design, setting, and participantsIn this cross-sectional study, national Medicare data were used to examine the 10-year (January 1, 2007, to November 30, 2016) changes in postoperative mortality rates in Black and White patients. Data analysis was performed from August 6 to December 31, 2019. Participants included fee-for-service beneficiaries enrolled in Medicare Part A who had a major surgical resection for 9 common types of cancer surgery: colorectal, bladder, esophageal, kidney, liver, ovarian, pancreatic, lung, or prostate cancer.ExposuresCancer surgery among Black and White patients.Main outcomes and measuresRisk-adjusted 30-day, all-cause, postoperative mortality overall and for 9 specific types of cancer surgery.ResultsA total of 870 929 cancer operations were performed during the 10-year study period. In the baseline year, a total of 103 446 patients had cancer operations (96 210 White patients and 7236 Black patients). Black patients were slightly younger (mean [SD] age, 73.0 [6.4] vs 74.5 [6.8] years), and there were fewer Black vs White men (3986 [55.1%] vs 55 527 [57.7%]). Overall national mortality rates following cancer surgery were lower for both Black (-0.12%; 95% CI, -0.17% to -0.06% per year) and White (-0.14%; 95% CI, -0.16% to -0.13% per year) patients. These reductions were predominantly attributable to within-hospital mortality improvements (Black patients: 0.10% annually; 95% CI, -0.15% to -0.05%; P < .001; White patients: 0.13%; 95% CI, -0.14% to -0.11%; P < .001) vs between-hospital mortality improvements. Across the 9 different cancer surgery procedures, there was no significant difference in mortality changes between Black and White patients during the period under study (eg, prostate cancer: 0.35; 95% CI, 0.02-0.68; lung cancer: 0.61; 95% CI, -0.21 to 1.44).Conclusions and relevanceThese findings offer mixed news for policy makers regarding possible reductions in racial disparities following cancer surgery. Although postoperative cancer surgery mortality rates improved for both Black and White patients, there did not appear to be any narrowing of the mortality gap between Black and White patients overall or across individual cancer surgery procedures.

Dataset Information

Disparities in mortality for chronic liver disease among Asian subpopulations in the United States from 2007 to 2016.

Publications

Disparities in mortality for chronic liver disease among Asian subpopulations in the United States from 2007 to 2016.

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