HES 2823 Lecture Notes - Lecture 2: Blind Experiment, Framingham Heart Study, Consumer Protection
21 Sep 2016
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In the past, nutrition facts were based on conventional wisdom, tradition, and common sense. Today, research is done to figure out the best nutrition facts. Experiment: test question, safety and ethical concerns, controlled experiments before human research. Get chemical x that could be cause of issue: test. 2 groups, one control and one with treatment control group is used for comparison with the results: collect data from test, analyze. Statistically significant: conclusion, share results, peer review someone in some field reviews info in journal, conduct more research. Human intervention studies: research applied to human situations, double blind study. Participant and researcher don"t know who got the treatment and who got the control: significance of secrecy. If you think you got treatment, it may affect how you feel: data. Framingham heart study: 1949 massachusetts, 5000 healthy participants, data collected every 5 years for decades analyzed and identified risk factors. Chronic diseases: single factor, multiple factors, conflicting factors, additive factors.
