Compare and contrast the major strengths and limitations of cohort studies and case-control studies
A comparison of the major strengths and limitations is presented in Table 5.5 in the text. Essentially, a cohort study may provide complete data on the cases and stages of a disease in which calculations and comparisons can be made between those who were exposed and not exposed. These studies tend to be expensive and take many years to complete, thus increasing the amount of non-response data and limiting the control of confounding variables. Case-control studies are relatively quick and inexpensive studies that are an excellent way to study rare diseases and diseases with long latency periods. Oftentimes, existing records can be utilized on a relatively few study subjects. Limitations of this type of study include that the mechanism of the disease is not studied, with validation of data difficult to achieve.
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Indicate whether the statement is true or false
"Focus Areas" of the 2005 edition of the Dietary Guidelines for Americans include all of the following EXCEPT:
a. consume 3 cups per day of fat-free or low-fat milk products. b. balance calories from food and beverages with calories expended. c. keep trans fatty acid consumption as low as possible. d. consume less than 4,000 mg of sodium per day.
The consistency of a batter (whether a pour or drop batter) is dependent on
a. the proportion of liquid to dry ingredients in the mixture. b. whether milk or water is used as a liquid. c. the initial temperature of the ingredients in the mixture. d. the type of fat or oil that is used. e. the amount of egg in the batter.
Discuss the complete process of carbohydrate digestion, beginning in the mouth
What will be an ideal response?