MPH515 2021 July Module 4 Quiz Latest

MPH515 Epidemiology and Biostatistics for Public Health Application I

Module 4 Quiz  

Question 1A prerequisite for using the direct method of age adjustment is that the age-specific death rates in the study population must be stable.

  True

  False

Question 2At the initial examination in the Framingham study, coronary heart disease was found in 5 per 1000 men ages 30–44, and in 5 per 1000 women ages 30–44. The inference that in this age group men and women have an equal risk of getting coronary heart disease is incorrect because the data are prevalence data and not incidence data.

  True

  False

Question 3Certain diseases can occur more than once in the same individual during a stated period of time. Repeated cases of the disease have no effect upon incidence rates.

  True

  False

Question 4The proportional mortality ratio (%) is defined as the mortality due to a specific cause during a time period divided by the mortality due to all causes during the same time period times 100.

  True

  False

Question 5Calculation of the standardized mortality ratio is an example of the direct method of age adjustment.

  True

  False

Question 6When the duration of a disease becomes short and the incidence is high, the prevalence becomes similar to incidence.

  True

  False

Question 7The point prevalence of a disease is defined as the number of persons ill divided by the total number in the group at a point in time.

  True

  False

Question 8The incidence rate of a disease is defined as the number of new cases of the disease over a time period divided by the total population (at risk) during the same time period times a multiplier (e.g. 100,000).

  True

  False

Question 9For a chronic disease of low incidence and long duration, prevalence of the disease increases relative to incidence.

  True

  False

Question 10The crude death rate is defined as the number of deaths in a given year divided by a reference population (during the midpoint of the year) times 100,000.

  True

  False

Question 11The risk of acquiring a given disease during a time period is best determined by:

  the incidence rate (cumulative incidence) for that disease in a given period of time.

  the mortality rate from that disease in the 0–4 age group.

  the period prevalence for that disease during the past year.

  a spot map that records all cases of the disease in the past year.

Review p.102 of your textbook for more information on this question.

Question 12Beach City has a rising population of 500,000 robust, fertile males and 450,000 robust, fertile females. If there were 4000 live births, 3 fetal deaths, and 40 maternal deaths, what is the crude birth rate?

  3997/950,000 × 1000

  4000/450,000 × 1000

  4003/950,000 × 1000

  4000/500,000 × 1000

  4000/950,000 × 1000

Question 13An epidemiologic survey of roller-skating injuries in Metroville, a city with a population of 100,000 (during the midpoint of the year), produced the following data for a particular year:

Number of skaters in Metroville during any given month: 12,000

Roller-skating injuries in Metroville: 600

Total number of residents injured from roller-skating: 1800

Total number of deaths from roller-skating: 90

Total number of deaths from all causes: 900

The proportional mortality ratio (%) due to roller-skating was: 

  90/600 × 100

  90/100,000 × 100

  90/1800 × 100

  90/900 × 100

Question 14An epidemiologic survey of roller-skating injuries in Metroville, a city with a population of 100,000 (during the midpoint of the year), produced the following data for a particular year:

Number of skaters in Metroville during any given month: 12,000

Roller-skating injuries in Metroville: 600

Total number of residents injured from roller-skating: 1800

Total number of deaths from roller-skating: 90

Total number of deaths from all causes: 900

The crude death rate for all causes was: 

  90/900 × 100,000

  90/600 × 100,000

  90/1,800 × 100,000

  900/100,000 × 100,000

Question 15An epidemiologic survey of roller-skating injuries in Metroville, a city with a population of 100,000 (during the midpoint of the year), produced the following data for a particular year:

Number of skaters in Metroville during any given month: 12,000

Roller-skating injuries in Metroville: 600

Total number of residents injured from roller-skating: 1800

Total number of deaths from roller-skating: 90

Total number of deaths from all causes: 900

The cause-specific mortality rate from roller-skating was: 

  90/100,000 × 100,000

  90/600 × 100,000

  90/1800 × 100,000

  90/900 × 100,000

Question 16The major disadvantage of crude rates is that:

  they are difficult to calculate from available data sources.

  they do not permit comparison of populations that vary in composition.

  All are correct.

  they may not allow for comparison of populations that differ in size.

Question 17Which of the following terms is expressed as a proportion (as distinguished from a ratio)? 

  Female Births / Male + Female Births

  Male Births / Female Births

  Female Births/ Male Births

  Female Births / Male + Female Births and Male Births / Female Births

Question 18Successful treatment programs that would shorten the duration of a disease primarily affect:

  the incidence of the disease.

  neither the incidence nor the prevalence of the disease.

  the prevalence of the disease.

  both the incidence and the prevalence of the disease.

Question 19Which of the following terms is expressed as a ratio (as distinguished from a proportion)?

  Female Births / Male + Female Births and Male Births / Male + Female Births

  Male Births / Female Births

  Female Births / Male + Female Births

  Male Births / Male + Female Births

Question 20Estimating the frequency of exposure: 

  uses primarily incidence data.

  uses primarily prevalence data.

  uses neither incidence data nor prevalence data.

  could use both incidence and prevalence data equally.

Review p.100 of your textbook for more information on this question.

 Question 21Determining workload and planning the scope of facilities and manpower needs, particularly for chronic disease:

  uses primarily prevalence data.

  uses neither incidence data nor prevalence data.

  could use both incidence and prevalence data equally.

  uses primarily incidence data.

Question 22Providing a direct estimate of the risk of developing a disease:

  uses neither incidence data nor prevalence data.

  uses primarily prevalence data.

  could use both incidence and prevalence data equally.

  uses primarily incidence data.

Question 23Expressing the burden or extent of some condition or attribute in a population:

  uses neither incidence data nor prevalence data.

  uses primarily incidence data.

  uses primarily prevalence data.

  could use both incidence and prevalence data equally.

Question 24The fundamental tool for etiologic studies of both acute and chronic diseases:

  could equally be both incidence and prevalence data.

  is primarily incidence data.

  is primarily prevalence data.

  is neither incidence data nor prevalence data.

Question 25Blood pressure measurements on adult males 30–39 years of age were obtained in a survey of a representative sample of Twin Cities households. To compare the frequency of hypertension in the white and nonwhite populations surveyed, the most appropriate measure is the:

  incidence rate.

  race-specific prevalence.

  prevalence.

  race-specific age-adjusted prevalence.

  race-specific incidence rate.