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Ischaemic heart disease in the elderly
Insights
This study found that 22.4% of older adults have ischemic heart disease, with prevalence increasing with age and smoking. Other common risk factors were not associated with increased disease frequency.
Area of Science:
- Cardiology
- Epidemiology
- Geriatrics
Background:
- Ischemic heart disease (IHD) is a significant health concern in aging populations.
- Understanding the prevalence and risk factors of IHD in community-dwelling older adults is crucial for public health initiatives.
Purpose of the Study:
- To determine the prevalence of ischemic heart disease in individuals aged 65 and above.
- To investigate the association between IHD and various potential risk factors, including age, sex, smoking, blood pressure, blood glucose, cholesterol, body weight, and skinfold thickness.
- To analyze the 5-year survival rates among subjects with IHD, differentiating based on diagnostic criteria and electrocardiogram findings.
Main Methods:
- A cross-sectional study involving 501 community-dwelling individuals aged 65 years and older.
- Clinical examinations and electrocardiography were used to diagnose ischemic heart disease.
- Data on potential risk factors including smoking history, blood pressure, blood glucose, serum cholesterol, body mass index, and skinfold thickness were collected.
- Survival data over a 5-year period was tracked for all participants.
Main Results:
- 22.4% of the study population exhibited clinical and/or electrocardiographic evidence of ischemic heart disease.
- The prevalence of IHD increased with advancing age and was slightly higher in men than in women.
- Current and total cigarette consumption were positively correlated with IHD frequency.
- No significant association was found between IHD and systolic/diastolic blood pressure, blood glucose, serum cholesterol, skinfold thickness, or percentage of ideal body weight.
- Overall 5-year survival for subjects with IHD did not differ significantly from the general cohort.
- Mortality was 1.5 to 2 times higher in subjects with IHD and abnormal electrocardiograms compared to those diagnosed via angina pectoris or prior myocardial infarction with normal electrocardiograms.
Conclusions:
- Ischemic heart disease is prevalent in older adults, with age and smoking being significant contributing factors.
- Traditional cardiovascular risk factors like hypertension and hyperlipidemia were not associated with increased IHD prevalence in this cohort.
- Electrocardiogram abnormalities in IHD patients indicate a poorer prognosis, highlighting the importance of detailed diagnostic assessment.
Abstract:
Studies were made for evidence of heart disease on 501 people aged 65 and more living at home; 22-4 per cent had clinical and/or electrocardiographic evidence of ischaemic heart disease. The prevalence of ischaemic heart disease increased with age, and was slightly greater in men than women. The frequency of ischaemic heart disease increased with increasing current cigarette consumption and with total cigarette consumption. There was no increase in relation to any of the following possible risk factors: systolic and diastolic blood pressure, blood glucose, serum cholesterol, skinfold thickness, percentage of ideal body weight. The survival over a 5-year period of all subjects with ischaemic heart disease did not differ significantly from that of all subjects together, but the mortality of subjects with ischaemic heart disease and an abnormal electrocardiogram was 1-5 to 2 times that of subjects in whom ischaemic heart disease was diagnosed on the basis of angina pectoris or past cardiac infarction, the electrocardiogram being normal.