130 Answered Questions for the topic Epidemiology

Epidemiology Statistics

07/29/25

How to treat ordinal predictors in the context of multiple linear regression
Hi all, I have a question regarding an analysis I’m trying to do right now concerning data of 100 patients. I have a transformed normally distrubuted continuous outcome Y. My predictor X is... more
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Epidemiology

08/31/24

Salmonella infection
A 2010 turtle-associated outbreak of Salmonella infections resulted in 135 illnesses in 25 states and the District of Columbia, children were disproportionately affected. What pathogen... more
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Epidemiology

04/25/24

Public Health- Program Evaluation
Between process or outcome evaluations, which evaluation plan do you think is most useful to stakeholders?
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Epidemiology

01/04/24

What is the best way to compare averages/medians
I would like to compare the percent of population below poverty line in different counties.
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Epidemiology

11/04/23

epidemiology question
A survey is sent to homeowners through email: “Do you prefer the look and feel of thick lush carpeting in your living room or just old hardwood floors?” What source of error/bias may interfere... more
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Epidemiology

10/03/23

How to solve this?
Researchers want to study how coffee drinking affects lung cancer.  They randomly selected a group of 5,000 people and assigned them by randomization into either a group that drinks coffee or a... more
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Epidemiology Science Biology

09/21/23

true or false question
For a chronic disease, if the incidence declines but the number of deaths increases, the prevalence will also greatly increase(True or False)?
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Epidemiology Math Calculus Precalculus

09/20/23

Please solve this question
In January 2010, a team of epidemiologists identified a sample of 12,525 women, 50- 65 years of age, in Denver, for a study of osteoporosis. Tests indicated that 6% of these women already had... more
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Epidemiology Biology

09/10/23

The population of the USS McCain (a navy ship) on January 5th, 2018 is an example of a ________ population
Which is the correct option?a- Fixedb- Dynamic
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Epidemiology

11/18/22

What potential issue(s) can happen when cases and controls are overmatched? Can you analyze the association between a matched variable and an outcome? Why or why not?
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Epidemiology

10/24/22

If observational, what type of study design is this and how do you know
A study was conducted. Medical records for 10,000 Medicare patients were examined. Researchers looked at whether or not patients had an hip or knee replacement between 2000 and 2010. They then... more
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Epidemiology

10/24/22

biases might occur in this study
A study was conducted. 4,000 adult males working for a large University in any capacity( professors, custodians, etc.) are asked in 1995 if they are smokers. Twenty years later, the researchers... more
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Epidemiology

10/05/22

If my session is shorter do I have to pay for the full thing.

My session is set for one hour and 15 mins. What happens if we only take 30 mins. Do I have to pay for the whole time?
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Epidemiology Biostatistics

08/25/22

Identify whether the texts in bold are discrete or continuous variables:
Unprecedented measures have been adopted to control the rapid spread of the ongoing COVID-19 epidemic in China. People’s adherence to control measures is affected by their knowledge, attitudes,... more
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Epidemiology Biostatistics

08/25/22

Identify whether the texts in bold are discrete or continuous variables:
It has been hypothesized that vitamin D is associated with androgen levels in men. We,therefore, aimed to evaluate whether vitamin D supplementation increases serum totaltestosterone (TT) levels in... more
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Epidemiology Statistics

04/24/22

Which of the following is an appropriate confidence interval to indicate significance for an OR=4.5? A. 2.6 to 4.4 B. 1.3 to 6.7 C. 0.5 to 6.7 D. -3.4 to 4.5

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Epidemiology

02/28/22

A. What absolute measure of association can be calculated? Provide an explanation.
Mortality Rates by Race and Ethnicitytotal: 703.5White: 710.7Black: 805.8Asian: 372.5Hispanic: 458.2*rates are per 100,000 population and age adjusted to the US standard population*
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Epidemiology Writing

01/28/22

What is the paragraph fragment continued on the next page called?
I am labeling pages and paragraphs for a CONSORT checklist. I would like to know how to identify the paragraph fragment on the following page
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Epidemiology Biostatistics

01/27/22

Is it proper to stop participant recruitment in a clinical trial when a treatment or control group has been shown to be statistically significant?
"The study was randomized and double-blind. It was designed to be discontinued when interim statistical analysis found a significant difference in favour of one of the groups. This happened when 45... more
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Epidemiology Idioms Metaphors

12/31/21

What is the difference between idioms and metaphors?
A green thumb or pretty as a rose.
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Epidemiology

12/11/21

What are multifactorial diseases
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11/06/21

Binomial Distribution
The distribution of weights for the population of females in the United States is approximately normal with mean µ = 135.4 pounds and standard deviation σ = 21.3 pounds.  What is the probability... more
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Epidemiology Math Biology Statistics

10/31/21

Statistics Probability Question
Let Y be a random variable that represents the number of infants in a group of 4,000 who die from asthma in a year. In the United States, the probability that a child dies from an acute asthma... more
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Epidemiology Math Biology Statistics

10/30/21

Probability Question

 Consider a group of nine individuals selected from the AARP (American Association of Retired People) of 50-year-olds and above in the United States. The number of persons in this sample who suffer... more
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Epidemiology Math Biology Statistics

10/28/21

Probability Question
I want to check my work for this question, my answer is 0.131 but I think I might have calculated this wrong.Question: The US preterm birth rates have declined between 2006 and 2008. In 2008, the... more
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