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Design a study to examine intake of calcium relates

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Reference no: EM132852857

People are randomized into two groups: one with calcium and one with a placebo.

a. What is this study design called? Why do we need a placebo group?

b. How can we better design the study to exclude the influence of age, gender and race?

c. How can you design a study to examine if intake of calcium relates to cardiovascular disease for the population overall? Give at least two study designs.

Reference no: EM132852857

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