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Differences in declining mortality rates due to coronary heart disease by neighbourhood deprivation.

ABSTRACT: BACKGROUND:Cardiovascular disease (CVD) is the main cause of death in most industrialised countries, including those in Europe. The mortality rates due to coronary heart disease (CHD), one of the most serious CVD conditions, have been decreasing in most European countries during the last decades. However, whether the trends over time in CHD mortality rates differ depending on neighbourhood deprivation has rarely been investigated. METHODS:For each year of the study period, 1988-2012, in Sweden, age-standardised mortality rates were calculated for three different types of neighbourhoods, characterised by a Neighbourhood Deprivation Index. Joinpoint regression was used to investigate potential changes in age-standardised mortality rates by neighbourhood deprivation and over time. RESULTS:Over the study period, age-standardised mortality rates due to CHD were consistently the highest in the deprived neighbourhoods and the lowest in the affluent neighbourhoods. We observed a statistically significant overall decline, ranging from 67% to 59%, in the age-standardised CHD mortality rates for each level of neighbourhood deprivation. Furthermore, the decline for the affluent neighbourhoods was significantly higher compared with the decline in the deprived neighbourhoods. CONCLUSION:Age-standardised CHD mortality rates decreased significantly in Sweden between 1988 and 2012. This decline was more pronounced in the affluent neighbourhoods, which indicates that the improvements in prevention and treatment of CHD have not benefited individuals residing in deprived neighbourhoods to an equal extent. Knowledge of time trends in CHD mortality by level of neighbourhood deprivation may help guide decision-makers in the development of appropriate healthcare policies for deprived neighbourhoods.

SUBMITTER: Oudin Astrom D

PROVIDER: S-EPMC6711481 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature

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Differences in declining mortality rates due to coronary heart disease by neighbourhood deprivation.

Oudin Åström Daniel D Sundquist Jan J Sundquist Kristina K

Journal of epidemiology and community health 20180112 4

<h4>Background</h4>Cardiovascular disease (CVD) is the main cause of death in most industrialised countries, including those in Europe. The mortality rates due to coronary heart disease (CHD), one of the most serious CVD conditions, have been decreasing in most European countries during the last decades. However, whether the trends over time in CHD mortality rates differ depending on neighbourhood deprivation has rarely been investigated.<h4>Methods</h4>For each year of the study period, 1988-20 ...[more]

PMID: 29330167

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Project description:OBJECTIVE:To examine secular trends and geographical variations in sex differences in mortality from coronary heart disease and investigate how these relate to distributions in risk factors. DESIGN:National and international data were used to examine secular trends and geographical variations in sex differences in mortality from coronary heart disease and risk factors. SETTING:England and Wales, 1921-98; Australia, France, Japan, Sweden, and the United States, 1947-97; 50 countries, 1992-6. DATA SOURCES:Office for National Statistics, World Health Organization, and Food and Agriculture Organization of the United Nations. RESULTS:The 20th century epidemic of coronary heart disease affected only men in most industrialised countries and had a very rapid onset in England and Wales, which has been examined in detail. If this male only epidemic had not occurred there would have been 1.2 million fewer deaths from coronary heart disease in men in England and Wales over the past 50 years. Secular trends in mean per capita fat consumption show a similar pattern to secular trends in coronary heart disease mortality in men. Fat consumption is positively correlated with coronary heart disease mortality in men (r(s)=0.79; 95% confidence interval 0.70 to 0.86) and inversely associated with coronary heart disease mortality in women (-0.30; -0.49 to -0.08) over this time. Although sex ratios for mortality from coronary heart disease show a clear period effect, those for lung cancer show a cohort effect. Sex ratios for stroke mortality were constant and close to unity for the entire period. Geographical variations in the sex ratio for coronary heart disease were associated with mean per capita fat consumption (0.64; 0.44 to 0.78) but were not associated with the sex ratio for smoking. CONCLUSION:Sex differences are largely the result of environmental factors and hence not inevitable. Understanding the factors that determine sex differences has important implications for public health, particularly for countries and parts of countries where the death rates for coronary heart disease are currently increasing.

Project description:ObjectiveBetween the years 1993 and 2008, mortality rates from coronary heart disease (CHD) in the Slovak Republic have decreased by almost one quarter. However, this was a smaller decline than in neighbouring countries. The aim of this modelling study was therefore to quantify the contributions of risk factor changes and the use of evidence-based medical therapies to the CHD mortality decline between 1993 and 2008.MethodsWe identified, obtained and scrutinised the data required for the model. These data detailed trends in the major population cardiovascular risk factors (smoking, blood pressure, total cholesterol, diabetes prevalence, body mass index (BMI) and physical activity levels), and also the uptake of all standard CHD treatments. The main data sources were official statistics (National Health Information Centre and Statistical Office of the Slovak Republic) and national representative studies (AUDIT, SLOVAKS, SLOVASeZ, CINDI, EHES, EHIS). The previously validated IMPACT policy model was then used to combine and integrate these data with effect sizes from published meta-analyses quantifying the effectiveness of specific evidence-based treatments, and population-wide changes in cardiovascular risk factors. Results were expressed as deaths prevented or postponed (DPPs) attributable to risk factor changes or treatments. Uncertainties were explored using sensitivity analyses.ResultsBetween 1993 and 2008 age-adjusted CHD mortality rates in the Slovak Republic (SR) decreased by 23% in men and 26% in women aged 25-74 years. This represented some 1820 fewer CHD deaths in 2008 than expected if mortality rates had not fallen. The IMPACT model explained 91% of this mortality decline. Approximately 50% of the decline was attributable to changes in acute phase and secondary prevention treatments, particularly acute and chronic treatments for heart failure (≈12%), acute coronary syndrome treatments (≈9%) and secondary prevention following AMI and revascularisation (≈8%). Changes in CHD risk factors explained approximately 41% of the total mortality decrease, mainly reflecting reductions in total serum cholesterol. However, other risk factors demonstrated adverse trends and thus generated approximately 740 additional deaths.ConclusionOur analysis suggests that approximately half the CHD mortality fall recently observed in the SR may be attributable to the increased use of evidence-based treatments. However, the adverse trends observed in all the major cardiovascular risk factors (apart from total cholesterol) are deeply worrying. They highlight the need for more energetic population-wide prevention policies such as tobacco control, reducing salt and industrial trans fats content in processed food, clearer food labelling and regulated marketing of processed foods and sugary drinks.

Project description:AimsCoronary artery disease (CAD) is a common cause of heart failure (HF). It remains unclear who, when and why to direct towards coronary revascularization. The outcomes of coronary revascularization in HF patients are still a matter of debate nowadays. This study aims to evaluate the effect of revascularization strategy on all-cause of death in the context of ischaemic HF.Methods and resultsAn observational cohort was conducted on 692 consecutive patients who underwent coronary angiography at the University Hospital of Toulouse between January 2018 and December 2021 for either a recent diagnosis of HF or a decompensated chronic HF, and in whom coronary angiograms showed at least 50% obstructive coronary lesion. The study population was divided into two groups according to the performance or not of a coronary revascularization procedure. The living status (alive or dead) of each of the study's participants was observed by April 2022. Seventy-three per cent of the study population underwent coronary revascularization either by percutaneous coronary intervention (66.6%) or coronary artery bypass grafting (6.2%). Baseline characteristics including age, sex and cardiovascular risk factors did not differ between the invasive and conservative groups, respectively. Death occurred in 162 study participants resulting in an all-cause mortality rate of 23.5%; 26.7% of observed deaths have occurred in the conservative group versus 22.2% in the invasive group (P = 0.208). No difference in survival outcomes has been observed over a mean follow-up period of 2.5 years (P = 0.140) even after stratification by HF categories (P = 0.132) or revascularization modalities (P = 0.366).ConclusionsFindings from the present study showed comparable all-cause mortality rates between groups. Coronary revascularization does not modify short-term survival outcomes in HF patients compared with optimal medical therapy alone outside the setting of acute coronary syndrome.

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Differences in declining mortality rates due to coronary heart disease by neighbourhood deprivation.

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Differences in declining mortality rates due to coronary heart disease by neighbourhood deprivation.

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