Dataset Information

Trends in Incidence and Case Fatality Rates of Heart Disease and Its Subtypes in Korea, 2006-2015.

ABSTRACT: Heart disease (HD) is the second leading cause of death in Korea. Several studies in Korea have analyzed the trends of incidence and mortality of myocardial infarction (MI) and ischemic heart disease (IHD), but few have investigated incidence and mortality trends of HD and its subtypes. The aim of this study was to assess the national trends in incidence and case fatality rates of overall HD and its subtypes (including IHD, heart failure (HF), arrhythmia, hypertensive HD (HHD), valvular HD, pulmonary HD, and others) in Korea between 2006 and 2015. Using records from the National Health Insurance Service (NHIS) claims database (2003-2015) and by obtaining the causes of death (Korean Statistical Information Service, 2006-2017), we analyzed the crude and age-standardized incidence rates from 2006 to 2015 and the case fatality rates from 2006 to 2017 of HD and its subtypes. Between 2006 and 2015, the incidence of overall HD changed minimally, but the age-standardized incidence of HD decreased from 210.0 persons per 100,000 populations in 2006 to 161.3 persons in 2015. However, incidence rates have increased in arrhythmia, HD other, pulmonary HD, and the case fatality rates have increased in HF, valvular HD, and HD other. Therefore, it is essential to continuously monitor the incidence and case fatality rates of HD and its subtypes and expand the focus onto prevention and treatment strategies from MI or IHD to various HD subtypes. Active prevention and management are needed to alleviate the burden of HD due to an aging population in Korea.

SUBMITTER: Seo SR

PROVIDER: S-EPMC7696411 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature

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Trends in Incidence and Case Fatality Rates of Heart Disease and Its Subtypes in Korea, 2006-2015.

Seo Su Ra SR Jang Shin Yi SY Cho Sung-Il SI

International journal of environmental research and public health 20201115 22

Heart disease (HD) is the second leading cause of death in Korea. Several studies in Korea have analyzed the trends of incidence and mortality of myocardial infarction (MI) and ischemic heart disease (IHD), but few have investigated incidence and mortality trends of HD and its subtypes. The aim of this study was to assess the national trends in incidence and case fatality rates of overall HD and its subtypes (including IHD, heart failure (HF), arrhythmia, hypertensive HD (HHD), valvular HD, pulm ...[more]

PMID: 33203087

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Project description:ImportanceAtrial fibrillation (AF) is the most common cardiac arrhythmia, and multiple studies have reported increasing AF incidence rates over time, although the underlying explanations remain unclear.ObjectivesTo estimate AF incidence rates from 2006 to 2018 in a community-based setting and to investigate possible explanations for increasing AF by evaluating the changing features of incident AF cases and the pool of patients at risk for AF over time.Design, setting, and participantsThis cohort study included 500 684 patients who received primary care and other health care services for more than 2 years through a single integrated health care delivery network in Pennsylvania. Data collection was conducted from January 2003 to December 2018. The base study population had no documentation of AF in the electronic medical record for at least 2 years prior to baseline. Data analysis was conducted from May to December 2019.Main outcomes and measuresIncident AF cases were identified through diagnostic codes recorded at inpatient or outpatient encounters. Age- and sex-adjusted AF incidence rates were estimated by calendar year from 2006 to 2018 both overall and across subgroups, including according to diagnostic setting (inpatient vs outpatient) and priority (primary vs secondary diagnosis).ResultsAmong 514 293 patients meeting criteria for the base study population, the mean (SD) age at baseline was 47 (18) years and 282 103 (54.9%) were women; 13 609 (2.6%) met AF diagnostic criteria on or prior to the baseline date and were excluded. Among 500 684 patients free of AF at baseline, standardized AF incidence rates from 2006 to 2018 increased from 4.74 (95% CI, 4.58-4.90) to 6.82 (95% CI, 6.65-7.00) cases per 1000 person-years, increasing significantly over time (P < .001). Incidence rates increased in all age and sex subgroups, although absolute rate increases were largest among those aged 85 years or older. The fraction of incident AF cases among individuals aged 85 years or older increased from 135 of 1075 (12.6%) in 2006 to 451 of 2427 (18.6%) in 2017. Patients with incident AF were more likely over time to have high body mass index (1351 of 3389 patients [39.9%] in 2006-2008 vs 4504 of 9214 [48.9%] in 2015-2018; P < .001), hypertension (2764 [81.6%] in 2006-2008 vs 7937 [86.1%] in 2015-2018; P < .001), and ischemic stroke (328 [9.7%] in 2006-2008 vs 1455 [15.8%] in 2015-2018; P < .001), but less likely to have coronary artery disease (1533 [45.2%] in 2006-2008 vs 3810 [41.4%] in 2015-2018; P < .001). Among 22 077 new cases of AF, 9146 (41.4%) were diagnosed as inpatients and 5731 (26.0%) as the primary diagnosis. Incidence rates of AF increased significantly in all diagnostic setting and priority pairings (eg, inpatient, primary: rate ratio, 1.07; 95% CI, 1.06-1.08; P < .001). Among patients at risk for AF, high BMI and hypertension increased over time (BMI: 71 433 of 198 245 [36.0%] in 2007 to 130 218 of 282 270 [46.1%] in 2017; hypertension: 79 977 [40.3%] in 2007 to 134 404 [47.6%] in 2017). Documentation of short-term ECG increased over time (23 297 of 207 349 [11.2%] in 2008 to 45 027 [16.0%] in 2017); however, long-term ECG monitoring showed no change (1871 [0.9%] in 2007 to 4036 [1.4%] in 2017).Conclusions and relevanceIn this community-based study, AF incidence rates increased significantly during the study period. Concurrent increases were observed in AF risk factors in the at-risk population and short-term ECG use.

Project description:BACKGROUND:Histologic subtypes of classical Hodgkin lymphoma [cHL; e.g., nodular sclerosis, mixed cellularity, not otherwise specified (NOS)] are epidemiologically and prognostically distinctive. Therefore, unexplained, ongoing incidence rate declines for mixed cellularity and increases for NOS require examination. METHODS:We analyzed detailed histology-specific Hodgkin lymphoma incidence rates in 1992 through 2011 U.S. SEER data (n = 21,372) and reviewed a regional subset of 2007 through 2011 NOS pathology reports for insight into diagnostic practices. RESULTS:cHL rates were stable until 2007, then decreased for whites [annual percent change (APC) and 95% confidence interval (CI), -3.6% (-5.6% to -1.5%)]. Nodular sclerosis rates declined after 2007 by 5.9% annually, with variation by gender, age, and race/ethnicity. In 1992 through 2011, mixed cellularity rates declined [APC -4.0% (-4.7% to -3.3%)], whereas NOS rates rose [5.3% (4.5%-6.2%)] overall and in most patient groups. The 2007-2011 NOS age-specific rates were more similar to mixed cellularity rates for 1992-1996 than 2007-2011. Trends in combined rates were minimal, supporting increasing misclassification of mixed cellularity, lymphocyte depletion, and specific nodular sclerosis subtypes as NOS. Eighty-eight of 165 reviewed NOS pathology reports addressed classification choice. Twenty (12.1%) justified the classification, 21 (12.7%) described insufficient biopsy material, and coders missed specific subtype information for 27 (16.4%). CONCLUSION:Recent nodular sclerosis rate declines largely represent true incidence changes. Long-term rate decreases for mixed cellularity and other less common subtypes, and increases for NOS (comprising ?30% of cHL cases in 2011), likely reflect changes in diagnostic and/or classification practice. IMPACT:Diminishing histologic subtyping undermines future surveillance and epidemiologic study of Hodgkin lymphoma. Guideline-based use of excisional biopsies and more coding quality control are warranted.

Dataset Information

Trends in Incidence and Case Fatality Rates of Heart Disease and Its Subtypes in Korea, 2006-2015.

Publications

Trends in Incidence and Case Fatality Rates of Heart Disease and Its Subtypes in Korea, 2006-2015.

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