A study followed 900,000 US adults from 1992 to 2008. At baseline, all participa
ID: 267183 • Letter: A
Question
A study followed 900,000 US adults from 1992 to 2008. At baseline, all participants were screened and determined to be cancer free and their body mass index (BMI) was calculated. Body mass index is a measure of obesity that is calculated using a person’s height and weight. Subjects were separated into the following groups according to their BMI: (a) normal weight, (b) slightly overweight, (c) moderately overweight and (d) greatly overweight. 57,145 deaths from cancer occurred in the population during the follow-up period.
1. What type of study is this?
2. Use the data given above to calculate the cumulative incidence of deaths from cancer among the study population over the follow-up period.
3. What additional information would need to be provided for you to be able to calculate the incidence rate of cancer deaths?
Explanation / Answer
1. Study to understand the relationship between obesity and cancer and its associated consequences.
2. The given data is insufficient to calculate the cumulative incidence of deaths from cancer.
3.from each group how many deaths have occurred and what is the BMI of each group, what is the death rate of each group as per their BMI must be given
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