Lifetime risk for developing congestive heart failure: the Framingham Heart Study.

Area of Science:

• Cardiology
• Public Health
• Epidemiology

Background:

• Congestive heart failure (CHF) represents a growing public health concern with significant morbidity and mortality.
• Understanding the lifetime risk of developing CHF is crucial for effective public health strategies and resource allocation.

Purpose of the Study:

• To determine the lifetime risk of developing overt congestive heart failure (CHF) at various ages.
• To assess the impact of hypertension on the lifetime risk of CHF.
• To evaluate the risk of CHF in the absence of myocardial infarction.

Main Methods:

• Analysis of data from 3757 men and 4472 women in the Framingham Heart Study, followed from 1971 to 1996.
• Calculation of lifetime CHF risk at selected index ages.
• Comparison of CHF risk between subjects with different blood pressure levels and in the absence of myocardial infarction.

Main Results:

• The lifetime risk for CHF at age 40 was 21.0% for men and 20.3% for women.
• Lifetime risk remained consistent across advancing ages due to increasing incidence rates.
• Subjects with blood pressure ≥160/100 mm Hg had double the lifetime risk of CHF compared to those with <140/90 mm Hg.
• The lifetime risk for CHF without prior myocardial infarction was 11.4% for men and 15.4% for women at age 40.

Conclusions:

• Established clinical criteria define a 1 in 5 lifetime risk for CHF in both men and women.
• CHF risk, particularly when occurring without myocardial infarction (1 in 9 for men, 1 in 6 for women), is significantly influenced by hypertension.
• These findings underscore the importance of hypertension control and myocardial infarction prevention in mitigating the population burden of CHF.