EBK WHAT IS LIFE? A GUIDE TO BIOLOGY
4th Edition
ISBN: 9781319159153
Author: PHELAN
Publisher: VST
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Chapter 16, Problem 7MC
Summary Introduction
Introduction:
Hazard factor is an external force that increases the risk of death in a population.
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===================================Which of the following sentences is not true:
a.Incidence rates describe the occurrence of new cases of a disease or condition in a community over a period of time relative to the size of the population at risk at the same time period.
b.Mortality rates, or rates of illness, in public health are incidence and prevalence rates.
c.A prevalence rate is the number of all cases of a specific disease or condition in a population at a given point in time relative to the population at the same point in time.
Yazed sent Today at 3:04 AMOne factor causing another particular event are more complex than what exist in the epidemiological triangle as Causal relations.
a.True.
b.False.
=======================
(Case finding, Screening, Health education); all of these are ways of Secondary prevention for COVID-19.
a.True.
b.False.
“Prevalence” can be defined as:
a. The proportion of new cases of a disease that occurs in a population at risk over a set period of time.
b. The number of cases of disease in a population.
c. The number of new cases of a disease that occurs in a population annually.
d. The proportion of the total population that has a disease at one point in time.
e. The number of cases of a disease at the midpoint of any year.
In a cohort study, the ratio of the incidence rate of a disease in an exposed group to the incidence rate of the disease in a nonexposed group is the:
a.
Relative risk
b.
Risk difference
c.
Prevalence ratio
d.
Odds ratio
Chapter 16 Solutions
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
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- Large numbers of microbes: (Select all that apply) a. contribute to population variability b. create statistical reliability c. contribute to population consistency d. give the same results in studies as smaller populationsarrow_forwardA biologist determines the growth rate of a population of 198 frogs in a marsh near Beaverhill Lake, Alberta, to evaluate the quality of the environment. The researcher finds that, in one year, 34 were born, 86 died, 12 migrated into the marsh, and there was no emigration. a. frogs are considered an indicator species for the quality of the environment. Determine whether the growth rate of this population in one year is a cause for concern. if so, what might the concerns be?arrow_forwardThe major disadvantage of crude rates is that: A. they may not allow for comparison of populations that differ in size. B. they do not permit comparison of populations that vary in composition. C. they are difficult to calculate from available data sources. D. all of the abovearrow_forward
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