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cindy y.

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t/f- case fatality rate is suitable for diseases that are short term, acute conditions

t

t/f- an issue in calculating and interpreting death rates is the possible effect of improvements in diagnostic methods over calendar time

f- not death rates... survival rates

t/f- relative survival rate is defined as the ratio of the observed survival to the expected survival

t

____ is often used in clinical medicine, particularly in evaluating treatments for cancer.

5-year survival rate

bimodal rate

high risk rate

population-based rate

5-year survival rate

t/f- medial survival time is another method to approach prognosis

t

f individuals are observed at diff periods of time, the unit used for counting observation time is called ____.

person-month

person-day

person-year

none

person-year

____ is used for acute diseases in which death occurs soon after diagnosis.

susceptibility

validity

accounting entity

case fatality rate

____ is defined as the length of time that half of the study population survives.

medial survival

sensitivity

efficiency

confidence

t/f- life tables are the standard means by which survival is expressed and compared

in calculating the ____, persons for whom data are not available for the full period of follow up--either bc follow up was not possible or bc they were enrolled after the study was started, are called withdrawals.

monitoring

ability

susceptibility

life table

_____ method is less useful for chronic diseases where death may occur after many years of diagnosis and the possibility of death could be other causes.

case fatality rate

bimodal rate

high risk rate

none

____ is the average of survival times but still only median survival time is used.

efficiency

mean

median

mode

____ is affected by extremes, whereas the mean is affected by even a single outliner.

medial survival

sensitivity

efficiency

confidence

____ is the sum of the number of years that each member of a population has been afflicted by a certain condition.

case fatality rate

person-years

common vehicle exposure

person-months

some pts who would have been assigned to a good stage in 1980, may have had ____ at that time, which would have been unrecognized.

fitness concept

intraobservers

micro-metastases

interobservers

t/f- the case fatality rate includes any explicit statement of time.

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