Best-known large sample study programme for coronary heart disease is:
## Core Concept
The question pertains to large sample studies related to coronary heart disease (CHD), focusing on identifying the best-known study program. This involves understanding various epidemiological studies and their contributions to the field of cardiovascular medicine.
## Why the Correct Answer is Right
The Framingham Heart Study is a long-term, ongoing cardiovascular cohort study on residents of the town of Framingham, Massachusetts. It is one of the most well-known and influential studies in the history of epidemiology and cardiovascular disease research. The study began in 1948 with 5,209 adult subjects from Framingham and has continued to provide valuable insights into the development of cardiovascular disease, including coronary heart disease. The study's design allows for the examination of risk factors and their impact on CHD over time, making it a landmark study in understanding heart disease.
## Why Each Wrong Option is Incorrect
- **Option A:** While there are numerous studies on coronary heart disease, without specific names, it's hard to directly refute. However, given the prominence of Framingham, any other study would need to have comparable or greater impact.
- **Option B:** Similarly, another study might be large and influential but would need to surpass or match Framingham's impact and longevity.
- **Option C:** This option might refer to another significant study, but again, it would have to offer something comparable or superior to Framingham in terms of scope, findings, and influence on CHD research.
## Clinical Pearl / High-Yield Fact
A key takeaway from the Framingham Heart Study and similar large-scale studies is the identification of major risk factors for coronary heart disease, often remembered by the mnemonic "ABCDEs": **A**ge, **B**lood pressure, **C**holesterol, **D**iabetes, and **E**lectrocardiogram (for evidence of previous heart damage). Understanding and managing these risk factors are crucial in the prevention and treatment of CHD.
## Correct Answer: D. Framingham study.