Epidemiology 4.5. Cole and MacMahon (1971) present the data given below from a case-control study of...

Epidemiology

4.5. Cole and MacMahon (1971) present the data given below from a case-control study of bladder cancer:

High-risk Occupation?	High cigarette Consumption?	No. of cases	No. of controls
No	No	43	94
No	Yes	173	189
Yes	No	26	20
Yes	Yes	111	72

(i) Calculate the odds ratio for bladder cancer comparing high-risk to other occupations (ignoring cigarette consumption).

(ii) Test the null hypothesis that the odds ratio is the same for those who work in high-risk and in other occupations.

(iii) Calculate the Mantel-Haenszel odds ratio for high-risk versus other occupations,adjusted for cigarette consumption.

(iv) Test the null hypothesis that the smoking-adjusted odds ratio is one.

(v) Interpret the results.

Expert Solution

orchestra answered 3 years ago

The CUCG MPH Epidemiology students’ research team is planning to conduct a case-control study of the...

The CUCG MPH Epidemiology students’ research team is planning to conduct a case-control study of the association between lack of adequate PPEs and covid19 infection among staff of Komfo Anokye Teaching Hospital in Kumasi. The students plan to study exposed nurses from the wards of the hospital as cases and unexposed nurses on retirement who live within the hospital flats as controls. As a reviewer of the research proposal; a. Explain the type of bias which could arise from this...

EPIDEMIOLOGY QUESTION 60. Investigators explored the relationship between coffee drinking and osteoporosis using a case-control study....

EPIDEMIOLOGY QUESTION 60. Investigators explored the relationship between coffee drinking and osteoporosis using a case-control study. They calculated the overall odds ratio and odds ratios among smokers and non-smokers. The results are shown below. OR (overall) = 2.20 OR (smokers) = 5.0 OR (non-smokers) = 1.0 In this example, would smoking be best considered an effect modifier, mediator, or confounder for the relationship between coffee consumption and osteoporosis? A. Confounder B. Mediator C. Effect modifier

QUESTION 3: CASE STUDY 3 (10%) Cole Property Management Company Cole Property Management Company received a...

QUESTION 3: CASE STUDY 3 (10%) Cole Property Management Company Cole Property Management Company received a bill for RM103, 500 with payment terms 3/20, n/30. Samantha Cole, the owner of the company, knows that she will not have enough money in her business checking account to pay the bill within 10 days and take the early payment discount. In fact, assume that she has nothing in her account, not a single penny. Samantha has a good credit, so her bank...

Case Study 2 Read the case study given below and use your knowledge to answer the...

Case Study 2 Read the case study given below and use your knowledge to answer the questions that follow. Examples are to be provided in places where possible. EBIT-EPS Analysis and Choice of Capital Structure The current COVID 19 pandemic showed a huge increase in the demand for Personal Protective Equipment’s (PPE) that included face masks, N95 respirators and medical clothing. Xixian Ltd that specialises in production of N95 respirators had stocks of the N95 respirators which were all purchased...

Given Samples A and B below, Sample A: 2.4 3.4 4.8 4.5 3.1 4.5 4.5 2.4...

Given Samples A and B below, Sample A: 2.4 3.4 4.8 4.5 3.1 4.5 4.5 2.4 2.0 Sample B: 3.0 3.9 4.3 3.7 3.9 3.4 4.2 4.9 3.4 a. Calculate the mean and standard deviation for each sample. Sample A: x̄ A = x̄ A = ; s A = ; s A = Sample B: x̄ B = x̄ B = ; s B = ; s B = Round to two decimal places if necessary b. Calculate the coefficient of variation for each sample....

Following is the case study description from the Epidemiology assignment: A 27-year old white female presented...

Following is the case study description from the Epidemiology assignment: A 27-year old white female presented at the walking clinic of her local physician on August 15. On physical exam, the patient had a fever of 38.5C. She appeared fatigued, had tender joints, and complained of a headache, a stiff neck and a backache. The physician noticed a circular "rash" about 5 inches in diameter, with a bright red leading edge and a dim center in the form of a...

Given the data below, what is the upper control limit for the Moving Range control chart?...

Given the data below, what is the upper control limit for the Moving Range control chart? Please enter your answer with at least 4 significant digits. Data: Observation 132.4654 118.9743 124.6528 130.3063 144.1334 118.4584 135.1793 115.2477 138.6022 104.4394 128.8716 133.7959 113.2013 120.4394 142.4859 123.592 135.9269 123.5473 139.3181 138.444 135.2332 125.4248 123.4138 138.3623 120.3414 126.7968 126.2955 138.4302 133.506 115.1217 119.105 136.3829 142.9304 146.3562 115.0906 147.2637 143.7961 140.0805

What are key developments in epidemiology from Snow until the present?

Define “epidemiology” and briefly discuss three key developments in epidemiology from Snow until the present. How...

Define “epidemiology” and briefly discuss three key developments in epidemiology from Snow until the present. How do the terms “epidemic” and “pandemic” relate to and differ from each other? Identify and discuss a recent example of epidemic and pandemic. You must cite and reference at least one scholarly source in APA.

A case -control study of soda drinking and diabetes is summarized in a 2*2 table below....

A case -control study of soda drinking and diabetes is summarized in a 2*2 table below. Case Control Soda 50 20 No Soda 20 50 70 70 Calculate the appropriate measure of association and the 95% confidence interval.

Question