In the period of 2010 – 2020 in the United States 1/3 of patients 55 years old or older hada seasonal flu vaccine. The risk of death for a flu-vaccinated person 55 years or older in thefollowing 10 months is 0.6 deaths per 1,000 flu-vaccinated persons 55 years old or older. Therisk of death for a non-vaccinated 55 year old or older person in the same 10 month period is5 deaths per 1,000. Given these numbers, what is the probability that a person 55 years orolder in the United States will survive 10 months into that year's flu season?

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Answered: 8. In the period of 2010 - 2020 in the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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1,000 people are enrolled in a 10-year cohort study. At the start of the study, 100 have diagnosed CVD. Over the course of the study, 80 people who were free of CVD at baseline develop CVD. What is the cumulative incidence at 10 years?
What is the predicted suicide rate per 100000 people ?
Suppose we want to study the effect of smoking on lung capacity in women. Match the study to experimental or observational. Find 100 women age 20 who do not currently smoke. Randomly assign 50 of the 100 women to the smoking treatment and the other 50 to the no smoking treatment. Those in the smoking group smoke a pack a day for 10 years while those in the control group remain smoke free for 10 years. Measure lung capacity for each of the 100 women. Find 100 women age 30 of which 50 have been smoking a pack a day for 10 years while the other 50 have been smoke free for 10 years. Measure lung capacity for each of the 100 women. Analyze, interpret, and draw conclusions from data.
Strands of human hair absorb elements from the bloodstream and provide a historical record of both health and the use or nonuse of chemical substances. Hair grows at the rate of about one – half inch per month, and a person with long hair might be accused or absolved on the basis of a segment of hair that sprouted many months or years ago. By separately analyzing sections of the hair strand, scientists can even approximate the periods of time during which drug use was heavy, moderate, light or altogether absent. If a transit employee provides a strand of hair for drug testing, state the null and alternative hypothesis in verbal terms, then identify what would constitute a Type I error and Type II error in this situation.
Cardiovascular Disease Suppose the incidence rate of myocardial infarction (MI) was 5 per 1000 among 45- to 54-year-old men in 2000. To look at changes in incidence over time, 5000 men in this age group were followed for 1 year starting in 2010. Fifteen new cases of MI were found. Suppose that 25% of patients with Mi in 2000 died within 24 hours. This propartion is called the 24-hour case-fatality rate. Of the 15 new MI cases in the preceding study. 5 died within 24 hours. Test whether the 24-hour case- fatality rate changed from 2000 to 2010.
A study of 1,000 people aged 20–30 asked how much television each person watches each night and how each person would rate their energy level in the evenings. The study showed that people who watch television for at least 2 hours every night have lower energy in the evening than people who do not watch as much television. Is this study a survey, observational study, or experimental study? Explain your reasoning. Does this mean that watching television for at least 2 hours every night lowers energy in the evening? Explain your reasoning. If you were to do your own experiment to determine if watching television for at least 2 hours every night lowers energy in the evening, how would you set up the experiment?
Suppose that for a given treatment group, 40% are expected to have an asthma attack within the first year after enrolling in the study. The average hazard (i.e. rate of asthma attacks) during that time in that group is 60% 40% 0% 50%
A fungal meningitis outbreak has been traced back to a compound pharmacy selling a specific injectable drug that is suspected to have been contaminated. In the past 4 weeks 15,051 patients were given the medication, and of those patients 72 individuals contracted fungal meningitis. What is the cumulative incidence (CI) for meningitis among those individuals who the medication was administered to?
Q. 4 Surgery was performed on 492 patients in the Anywhere Health Care Facility during March, and 27 of those patients died within 10 days of surgery. Find Postoperative death rate.
.A new, miracle diabetes drug that diminishes major symptoms of diabetes has been approved by the FDA. Health care professionals and researchers believe that the new drug will prolong lifespan of diabetes patients. If the population is in steady state and the incidence is constant, what will the effect of this new drug be on the prevalence of diabetes in the population? Explain.
Suppose that the incidence rate pf myocardial infraction (MI) was 5 per 100 among 45 - 50 year old men in 2000. To look at changes in incidence over time, 5000 men in this age groups were followed for 1 year starting in 2010. Twenty new cases of MI were found. Suppose we eventually plan to accumulate 50 MI cases during the period 2010-2015. Suppose that 20% of the patients with MI in 2000 died within 24 hours. This proportion is called the 24 hour case fatality rate. A test is performed to see if the true proportion of 24 hour case fatality rate differs from 20%, with significance level of 0.01. Assume that the 24-hour case fatality rate is truly 25% during the period. how large a sample is needed to achieve 92% power?
Q. 15 Explain the Central Mortality Rate.

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