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Impact of non-cardiovascular disease comorbidity on cardiovascular disease symptom severity: a population-based study.

ABSTRACT: Non-cardiovascular comorbidity is common in cardiovascular disease (CVD) populations but its influence on chest pain (CP) and shortness of breath (SOB) symptom-specific physical limitations is unknown. We wanted to test the a priori hypothesis that an unrelated comorbidity would influence symptom-specific physical limitations and to investigate this impact in different severities of CVD.The study was based on 5426 patients from ten family practices, organised into eight a priori exclusive severity groups: (i) no CVD or osteoarthritis (OA) (reference), (ii) index hypertension, ischaemic heart disease (IHD) and heart failure (HF) without OA, (iii) index OA without CVD and (iv) same CVD groups with comorbid OA. The measure of CP physical limitations was Seattle Angina Questionnaire and for SOB physical limitations was the Kansas City Cardiomyopathy Questionnaire. Adjusted baseline associations between the cohorts and symptom-specific physical limitations were assessed using linear regression methods. In the study population, 1443 (27%) reported CP and 2097 (39%) SOB. CP and SOB physical limitations increased with CVD severity in the index and comorbid groups. Compared with the respective index CVD group, the CP physical limitation scores for comorbid CVD groups with OA were lower by: -14.7 (95% CI -21.5, 7.8) for hypertension, -5.5 (-10.4, -0.7) for IHD and -22.1 (-31.0, -6.7) for HF. For SOB physical limitations, comorbid scores were lower by: -9.2 (-13.8, -4.6) for hypertension, -6.4 (-11.1, -1.8) for IHD and -8.8 (-19.3, 1.65) for HF.CP and SOB are common symptoms, and OA increases the CVD symptom-specific physical limitations additively. Comorbidity interventions need to be developed for CVD specific health outcomes.

SUBMITTER: Rushton CA

PROVIDER: S-EPMC4078220 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature

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Impact of non-cardiovascular disease comorbidity on cardiovascular disease symptom severity: a population-based study.

Rushton C A CA Kadam U T UT

International journal of cardiology 20140514 1

<h4>Objectives</h4>Non-cardiovascular comorbidity is common in cardiovascular disease (CVD) populations but its influence on chest pain (CP) and shortness of breath (SOB) symptom-specific physical limitations is unknown. We wanted to test the a priori hypothesis that an unrelated comorbidity would influence symptom-specific physical limitations and to investigate this impact in different severities of CVD.<h4>Method and results</h4>The study was based on 5426 patients from ten family practices, ...[more]

PMID: 24856803

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Project description:ObjectiveTo quantify associations of chronic kidney disease stages with major cardiovascular disease and non-vascular mortality in the general adult population.DesignProspective population based cohort study.SettingReykjavik, Iceland.Participants16 958 people aged 33-81 years without manifest vascular disease and with available information on stage of chronic kidney disease (defined by both estimated glomerular filtration rate and urinary protein) at study entry.Main outcome measuresHazard ratios for time to major coronary heart disease outcomes and mortality.Results1210 (7%) of participants had chronic kidney disease at entry. During a median follow-up of 24 years, 4010 coronary heart disease outcomes, 559 deaths from stroke, and 3875 deaths from non-vascular causes were recorded. Compared with the reference group (estimated glomerular filtration rate 75-89 ml/min/1.73 m(2) and no proteinuria), people with lower renal function within the normal range of glomerular filtration rate did not have significantly higher risk of coronary heart disease. By contrast, in 1210 (7%) participants with chronic kidney disease at entry, hazard ratios for coronary heart disease, adjusted for several conventional cardiovascular risk factors, were 1.55 (95% confidence interval 1.02 to 2.35) for stage 1, 1.72 (1.30 to 2.24) for stage 2, 1.39 (1.22 to 1.58) for stage 3a, 1.90 (1.22 to 2.96) for stage 3b, and 4.29 (1.78 to 10.32) for stage 4. Information on chronic kidney disease increased discrimination and reclassification indices for coronary heart disease when added to conventional risk factors (P<0.01). The incremental gain provided by chronic kidney disease was lower than that provided by diabetes or smoking (C index increases of 0.0015, 0.0024, and 0.0124 respectively). Hazard ratios with chronic kidney disease were 0.97 (0.82 to 1.15) for cancer mortality and 1.26 (1.07 to 1.50) for other non-vascular mortality.ConclusionsIn people without manifest vascular disease, even the earliest stages of chronic kidney disease are associated with excess risk of subsequent coronary heart disease. Assessment of chronic kidney disease in addition to conventional risk factors modestly improves prediction of risk for coronary heart disease in this population. Further studies are needed to investigate associations between chronic kidney disease and non-vascular mortality from causes other than cancer.

Dataset Information

Impact of non-cardiovascular disease comorbidity on cardiovascular disease symptom severity: a population-based study.

Publications

Impact of non-cardiovascular disease comorbidity on cardiovascular disease symptom severity: a population-based study.

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