Cohort Study on Physical Activity and CHD, Case-Control Study on Dietary Fat and Skin Cancer, Bias in Cohort and Case-Control Studies
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This article analyzes a cohort study on physical activity and CHD, a case-control study on dietary fat and skin cancer, and discusses biases in cohort and case-control studies. The cohort study found that physical activity reduces the incidence of CHD, while low-income earners have an increased risk. The case-control study found that high-fat diets increase the risk of skin cancer. The article also discusses biases in cohort and case-control studies, such as data collection and selection bias. The subject is health research. References are included.