When designing a study to examine the potential association between a plant based diet and heart disease, do you think a cohort or case-controlled study would be most suitable? Provide a comparison of these two study types and the reasons for your conclusion.
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When designing a study to examine the potential association between a plant based diet and
heart disease, do you think a cohort or case-controlled study would be most suitable? Provide a
comparison of these two study types and the reasons for your conclusion.
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- When designing a study to examine the association between a plant based diet and heart disease, do you think a cohort or case-controlled study would be most suitable?Case-control study, prospective cohort study, cross-over trial, and retrospective cohort study are all examples of observational study designs. Is it true?In this fictitious example of a cohort study, we found that in a factory of 3,000 workers, 1,000 workers were exposed to toxic substances, and 2,000 were not. During the study period, 800 of the exposed workers developed some type of lung disease, and only 40 of the non-exposed workers developed a lung disease. C. What is the incidence of lung disease in exposed workers that can be attributed to being exposed to asbestos? Use the already rounded off answers in the previous items when computing and answer should be in whole numbers. D. What is the proportion of the total incidence of lung disease in those exposed workers that is attributable to asbestos? Use the already rounded off answers in the previous items when computing and answer should be in whole numbers.
- In this fictitious example of a cohort study, we found that in a factory of 3,000 workers, 1,000 workers were exposed to toxic substances, and 2,000 were not. During the study period, 800 of the exposed workers developed some type of lung disease, and only 40 of the non-exposed workers developed a lung disease. A. What is the incidence of lung disease among exposed workers? Use 1,000 as the multiplication factor and answer should be in whole numbers. B. What is the incidence of lung disease among non-exposed workers? Use 1,000 as the multiplication factor and answer should be in whole numbers.Question:- Which is considered to give the weakest evidence on a nutritional issue? (Which ranks at the bottom of the Hierarchy ofEvidence?)A) Ecological studyB) Randomized controlled trialC) Case-control studyD) Cohort studyCompare and contrast the bottleneck and founder effects.
- The one-year risk in an exposed group is 15 per 1000. The one-year risk ofdisease in a non-exposed is 10 per 1000. Would it be correct say that the exposureincreases risk by 150%? Explain your reasoningAccessibility to playgrounds and/or parks could potentially help reduce childhood obesity. As an epidemiologist, you intend to look into this relationship. To that end, you create a list of all cities in the state of Rhode Island. You note the prevalence of choldhood obesity for each city. For each city in RI, you also note the proportion of households with safe access to a park or a playground within 10 minute walking distance. This is an example of _________________________ study design a. Prospective cohort b. Ecological c. Cross-sectional d. Case control e. Retrospective cohortCalculate standardised survival (lx), % mortality, and age-specific survival (px) and mortality (qx) rates for Ovis dalli and Quercus robur by filling in Table 1 show calculations
- In a cohort study, the ratio of the incidence rate of a disease in an exposed group to the incidence rate of the disease in a nonexposed group is the: a. Relative risk b. Risk difference c. Prevalence ratio d. Odds ratioThe table below shows the demand for farmed cereals in different regions of the world in 1984 and 1995 (values expressed as x 10^6 tonnes). (a) Determine which region had the highest percentage increase in demand between 1984 and 1995. (b) describe and explain the significance of the data in the table.Which prioritization criterion should be given the most emphasis if you want to analyze the probability of minimizing or eradicating the family's health problem? A. Modifiability B. Nature of the Problem C. Preventive Potential D. Salience