A researcher is examining the impact of a new drug on the duration of the flu...
A researcher is examining the impact of a new drug on the duration of the flu (from onset of the symptoms to full recovery ). The researcher recruited 200 patients from a local hospital who confirmed the flu cases. Participants were randomly assigned to either receive the new drug or placebo. Duration of flu symptoms was tracked for all the participants . Which type of research design is the best classified as ?
- Ecologic
- Prospective Cohort
- Cross sectional
- Case control
- Randomized Controlled trial
Homework Answers
Add Answer to:
A researcher is examining the impact of a new drug on the
duration of the flu...
5. A study is planned to assess the effectiveness of a new combination drug for treating nephrolithiasis (kidney stone). One hundred patients with nephrolithiasis will be randomly assigned to receive...
5. A study is planned to assess the effectiveness of a new combination drug for treating nephrolithiasis (kidney stone). One hundred patients with nephrolithiasis will be randomly assigned to receive either the new combination drug or the standard surgical intervention. The efficacy of the new drug will be measured by the time it takes a patient to return to normal activities, measured in days. Identify the appropriate research design for this study a. Prospective cohort study b. Randomized controlled trial...
A multicenter double-blind randomized study was carried out to compare the effect of drug X with that of a placebo in patients surviving acute myocardial infarction (AMI). Treatment with the drug star...
A multicenter double-blind randomized study was carried out to compare the effect of drug X with that of a placebo in patients surviving acute myocardial infarction (AMI). Treatment with the drug started 7 days after infarction in 1,884 patients, 52% of all persons who were evaluated for entry into the study. 945 participants were randomized to treatment with drug X while 939 were assigned to the placebo group. Patients were then followed for 12 months for reinfarction. There were 152...
A multicenter double-blind randomized study was carried out to compare the effect of drug X with...
A multicenter double-blind randomized study was carried out to compare the effect of drug X with that of a placebo in patients surviving acute myocardial infarction (AMI). Treatment with the drug started 7 days after infarction in 1,884 patients, 52% of all persons who were evaluated for entry into the study. 945 participants were randomized to treatment with drug X while 939 were assigned to the placebo group. Patients were then followed for 12 months for reinfarction. There were 152...
In late February, the US National Institutes of Health (NIH) announced that a new study to...
In late February, the US National Institutes of Health (NIH) announced that a new study to evaluate the safety and efficacy of the antiviral drug remdesivir in hospitalized adults diagnosed with COVID-19 had begun at the University of Nebraska Medical Center (UNMC) in Omaha. Participants in the NIH-sponsored study must be hospitalized for lab-confirmed COVID-19, provide informed consent to participate in the study, and undergo a baseline physical exam before receiving treatment. They will then be randomly assigned either to...
3. Consider a Phase II clinical trial designed to investigate the effectiveness of a new drug...
3. Consider a Phase II clinical trial designed to investigate the effectiveness of a new drug to reduce symptoms of asthma in children. A total of n=10 participants are randomized to receive either the new drug or a placebo. Participants are asked to record the number of episodes of shortness of breath over a 1 week period following receipt of the assigned treatment. The data are shown below. Placebo: 7, 2, 10, 5, 12 New Drug: 3, 6, 4, 11,...
E. Longitudinal study 12. A researcher is examining the effectiveness of a new drug on serum...
E. Longitudinal study 12. A researcher is examining the effectiveness of a new drug on serum blood glucose in an anmal model of diabetes. He gives 20 rats a single dose every day for 1 week and gives a similarly matched group of 20 rats a daily placebo dose over the same 1-week period. Following the final dose administration, the investigator measures the blood glucose level in the rats, using a value of 120g/dL as a cutoff do define hyperglycemia....
13. The data in Table 6-27 are collected in a randomized trial to test the efficacy of a new drug for migraine headaches. The following are characteristics of study participants overall and then orga...
13. The data in Table 6-27 are collected in a randomized trial to test the efficacy of a new drug for migraine headaches. The following are characteristics of study participants overall and then organized by the treatment to which they are assigned TABLE 6-27Characteristics in Participants in Study of Treatment for Migraine Headaches All (n- 200) Placebo (n 100) New Drug (n 100) 32.0 (4.9) 31.9 (5.1) 32.8 (4.7 Mean (SD) age, years 51% 48% 54% % Male 78% 80%...
Question 4 (2 points) Saved The study "Transcatheter or Surgical Aortic-Valve Replacement in Intermediate-Risk Patients" was...
Question 4 (2 points) Saved The study "Transcatheter or Surgical Aortic-Valve Replacement in Intermediate-Risk Patients" was published in the New England Journal of Medicine in 2016. This study compared the efficacy of two treatments for cardiovascular malfunction. Over 1,000 low-risk patients were randomly assigned to a standard treatment: a type of invasive heart surgery. Another 1,000 low-risk patients were randomly assigned to a nonstandard treatment: the use of a less invasive non-surgical catheter. Researchers compared the two treatment groups, and...
In a study of 380 diabetics and nondiabetics, patients were classified as underweight, normal weight, overweight and obese according to their diabetes status. The probability of being normal weight is...
In a study of 380 diabetics and nondiabetics, patients were classified as underweight, normal weight, overweight and obese according to their diabetes status. The probability of being normal weight is 0.31 and the probability of having diabetes is 0.39. If you select two individuals from the population, the probability of being diabetic and normal weight is 0.09. What is the probability that either of the two randomly selected individuals (or both) will be diabetic or normal weight? a. Pr (diabetic...
please provide a summary with intext citaion for this article: T HE HEART AND ESTROGEN/ progestin...
please provide a summary with intext citaion for this article: T HE HEART AND ESTROGEN/ progestin Replacement Study (HERS) was a randomized, blinded, placebo-controlled trial of the effect of 0.625 mg of conjugated estrogens plus 2.5 mg of medroxyprogesterone acetate daily on coronary heart disease (CHD) event risk among 2763 postmenopausal women with documented CHD.1 Overall, during 4.1 years of follow-up, there were no significant differences between the hormone and placebo groups in the primary outcome of CHD events (nonfatal...
5. A study is planned to assess the effectiveness of a new combination drug for treating nephrolithiasis (kidney stone). One hundred patients with nephrolithiasis will be randomly assigned to receive either the new combination drug or the standard surgical intervention. The efficacy of the new drug will be measured by the time it takes a patient to return to normal activities, measured in days. Identify the appropriate research design for this study a. Prospective cohort study b. Randomized controlled trial...
E. Longitudinal study 12. A researcher is examining the effectiveness of a new drug on serum blood glucose in an anmal model of diabetes. He gives 20 rats a single dose every day for 1 week and gives a similarly matched group of 20 rats a daily placebo dose over the same 1-week period. Following the final dose administration, the investigator measures the blood glucose level in the rats, using a value of 120g/dL as a cutoff do define hyperglycemia....
13. The data in Table 6-27 are collected in a randomized trial to test the efficacy of a new drug for migraine headaches. The following are characteristics of study participants overall and then organized by the treatment to which they are assigned TABLE 6-27Characteristics in Participants in Study of Treatment for Migraine Headaches All (n- 200) Placebo (n 100) New Drug (n 100) 32.0 (4.9) 31.9 (5.1) 32.8 (4.7 Mean (SD) age, years 51% 48% 54% % Male 78% 80%...
Question 4 (2 points) Saved The study "Transcatheter or Surgical Aortic-Valve Replacement in Intermediate-Risk Patients" was published in the New England Journal of Medicine in 2016. This study compared the efficacy of two treatments for cardiovascular malfunction. Over 1,000 low-risk patients were randomly assigned to a standard treatment: a type of invasive heart surgery. Another 1,000 low-risk patients were randomly assigned to a nonstandard treatment: the use of a less invasive non-surgical catheter. Researchers compared the two treatment groups, and...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago