a study, where the causal relationship between alcohol drinking and colon cancer was studied, there were 2000 people who consume alcohol and there were 2000 people who do not consume alcohol. These populations were followed up for 10 years and after the following period there were 280 people who had colon cancer in alcohol drinker group, compared with 100 peop

a study, where the causal relationship between alcohol drinking and colon cancer was studied, there were 2000 people who consume alcohol and there were 2000 people who do not consume alcohol. These populations were followed up for 10 years and after the following period there were 280 people who had colon cancer in alcohol drinker group, compared with 100 peop

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter12: Genes And Cancer

Section: Chapter Questions

Problem 27QP: Studies have shown that there are significant differences in cancer rates among different ethnic...

See similar textbooks

Similar questions

In a study, where the causal relationship between alcohol drinking and colon cancer was studied, there were 2000 people who consume alcohol and there were 2000 people who do not consume alcohol. These populations were followed up for 10 years and after the following period there were 280 people who had colon cancer in alcohol drinker group, compared with 100 people having colon cancer in the non-drinker group. What was the incidence of colon cancer in the alcohol drinkers? explain very detail
he first involved an assessment of the relationship between cigarette smoking and incidence of lung cancer. For cigarette smokers, the lung cancer incidence rate was Ie = 200 per 100,000. For nonsmokers, the lung cancer incidence rate was Io = 25 per 100,000. The lung cancer incidence rate in the entire population was It = 100 per 100,000. The second study involved an assessment of the relationship between cigarette smoking and incidence of coronary heart disease. For cigarette smokers, the coronary heart disease incidence rate was Ie = 500 per 100,000. For nonsmokers, it was Io = 250 per 100,000. In the overall population, the coronary heart disease rate was It = 300. 1. What is relative risk the of developing lung cancer in the first study and of developing coronary heart disease in the second study? Interpret. 2. From the data involving cigarette smoking and lung cancer incidence, what are the attributable risk and the attributable-risk percent? Interpret the result. 3. From the…
A cohort study was conducted to investigate the association between alcohol consumption and bladder cancer. The study population includes 200 men in Community X who were aged 55-69 years at baseline. All subjects completed a self-administered questionnaire which includes common risk factors for cancer including alcohol consumption patterns. Subjects were followed up for 6 years through record linkage to cancer registries. Table 1 shows the data gathered at the end of the follow-up period. Calculate the ff: Risk differencePopulation attributable fractionAttributable number
An epidemiological study involved 674 workers of a vinyl chloride (a plastic manufacturing chemical) manufacturing plant. The study aimed to determine an association between exposure to vinyl chloride and liver cancer. Out of 200 workers who routinely worked in vinyl chloride production area, 15 developed liver cancer. Another group of workers consisting of individuals with smoking histories similar to the plant workers, and who were unlikely to have encountered vinyl chloride, had 24 develop liver cancers and 450 who did not develop liver cancer. a. Given the above information, fill in the 2x2 table below: Exposed: Plant workers Not Exposed: Control group TOTAL b. Calculate the relative risk Developed Liver Cancer Did not Develop Liver Cancer TOTAL 674
An epidemiological study of 500 men between the ages of 20 and 65 years of age revealed a correlation between an increased consumption of tomatoes and a lower incidence of prostate cancer. The results of this study do not prove that increased tomato consumption lowers the risk for prostate cancer because: A) The study shows a correlation between two factors that may or may not actually have an effect on each other. B) The study does not show how tomatoes lower prostate cancer risk. C) A single study cannot provide enough evidence to conclusively prove an effect. D) All of the above are valid reasons.
Studies have shown that there are significant differences in cancer rates among different ethnic groups. For example, the Japanese have very high rates of colon cancer but very low rates of breast cancer. It has also been demonstrated that when members of low-risk ethnic groups move to high-risk areas, their cancer risks rise to those of the high-risk area. For example, Japanese who live in the United States, where the risk of breast cancer is high, have higher rates of breast cancer than do Japanese who live in Japan. What are some of the possible explanations for this phenomenon? What factors may explain why the Japanese have higher rates of colon cancer than do other ethnic groups?
An investigator is interested in estimating the incidence rate of prostate cancer in the state of Louisiana. Men who have had radical prostatectomies due to findings from a previous biopsy have had their prostate removed and thus are not at risk for prostate cancer. If the investigator incorrectly failed to exclude men with radical prostatectomies from the study population, how would the observed incidence rate compare to the true incidence rate? Explain.
A population has been exposed to dieldrin (CSF = 30 (mg.kg-¹.day-1)-1). US EPA states that the cancer risk of 10-4 is the maximum acceptable level. a) Determine the maximum safe exposure dose of dieldrin. b) If someone has been exposed to a dose of 2 x 10-6 mg.kg-1.day-1. Comment the acceptability and express your results as 1 in how many people could get cancer.
A researcher is conducting an experiment testing whether a new pharmaceutical drug is able to effectively treat heartburn and has a physician assisting with the study involving volunteers who experience chronic heartburn. Which of the following descriptions most closely describes the control used in this study? Show answer choices The researcher has organized the patients into 4 groups, where patients either take 1 dose of the drug, 2 doses of the drug, 1 dose of the placebo, or 2 doses of the placebo. The physician asks patients to rate their heartburn discomfort on a scale from 1-10 every 5 minutes up to an hour. The physician and patients both do not know if they are receiving the actual drug or a placebo. The placebo pill contains just compressed sugar and no active drug. Patients are randomly selected and placed into the four categories.
https://www.liebertpub.com/doi/10.1089/tmj.2009.0031 A pdf is attached above in the link for the article. Results of this study?
A small study is conducted of two different dietary supplements to prevent peanut allergy.For each group, 5 people are enrolled who are free of peanut allergies and then followed them over time to see what happens over the course of 5 years of the study. Our goal is to see which supplement is superior in preventing peanut allergy. The data from the study is below: c.What is the risk of mortality in Supplement B?
1. Explain how incidence and prevalence are related to each other with examples.. 2. A study starts with 6,659 healthy people. Over the next 2 years, 175 develop multiple sclerosis. What is the incidence proportion of multiple sclerosis over the study period? Show all work. Look up a journal article on multiple sclerosis and summarize the findings. 3. The country of South Korea had 51.74 million people in 2020, with 8.4 million aged 65 or older. At the end of 2020 South Korea reported 830,000 people aged 65 or older currently had dementia. What is the prevalence of dementia among those aged 65 or older?