HLTH 503 Quiz 2
HLTH 503 Quiz 2: Ratios, Proportions, and Rates
- True or False? The 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 or False? Certain 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 or False? The 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 or False? A prerequisite for using direct age adjustment is that the age- specific death rates in the study population must be stable.
- Successful treatment programs that would shorten the duration of a disease primarily affect:
- True or False? The 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 or False? Calculation of the standardized mortality ratio is an example of the direct method of age adjustment.
- True or False? When the duration of a disease becomes short and the incidence is high, the prevalence becomes similar to incidence.
- The incidence of a disease is five times greater in men than in women, but the prevalence shows no sex difference. The most likely explanation is that:
- An 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:
- The risk of acquiring a given disease during a time period is best determined by:
- The major disadvantage of crude rates is that:
- True or False? Health phenomena may show cyclic variations in a person’s response to temporary stressors.
- Which of the following statements most accurately expresses the breeder hypothesis for schizophrenia?
- Descriptive epidemiology has the following characteristics (Choose the incorrect option):
- Which of Mill’s four canons suggests that there is an association between frequency of disease and the potency of a causative factor?
- True or False? Nativity refers to place of origin of an individual.
- A null hypothesis is most similar to which of the following?
- True or False? The three categories of descriptive epidemiologic variables are person, place, and time.
- Descriptive epidemiology characterizes the amount and distribution of disease within a population and enables the researcher to:
- True or False? The human biological clock phenomenon is linked to place variation in diseases.
- True or False? WHO is a major source of information about worldwide international variations in rates of disease.
- Cyclic variations in the occurrence of disease may reflect:
- Which of the following reasons might account for place variation in disease?
- True or False? One of three main purposes of descriptive epidemiology is to aid in the creation of hypotheses.