EXAM QUESTIONS |FREQUENTLY TESTED QUESTIONS
||VERIFIED SOLUTIONS (100% CORRECT) GRADED A+
/2025 BRAND NEW!!
180 patients were treated for disease X from 2007 to 2009. Their
progress was
followed to 2010. Treatment results are given in the table. No
patients were lost
to follow up.What is the computed probability of surviving
for three years? -
ANSWER-
54.8%
The most likely explanation for the differences in rates of ASHD
between the initial examination and the yearly follow-up
examinations in men is that ________. - ANSWER-the initial
examination measures the prevalence of ASHD, whereas the
subsequent examinations primarily measure the incidence of
ASHD
,The relative risk for developing ASHD subsequent to entering
the study in men as compared to women is ________. -
ANSWER-lowest in the oldest age group
Which of the following is a valid assumption based on this table
and this data? -
ANSWER-There has been no change in effectiveness of
treatment from 2007 to
2010
What is the value for the blank cell in the table using the
additive model of
interaction? -
ANSWER-12
When studying a disease in which all cases that developed
were determined to have a relative risk equal to or less than 1.0,
the interpretation is that ________. - ANSWER-there is either no
association or a negative association between the factor and
the disease
Which of the following is a good index of the severity of a
short-term, acute
disease? - ANSWER-Case-
fatality
, ________ is when two or more existing interventions are
compared to determine which intervention would work best in a
given population or for a given patient. - ANSWER-comparative
effectiveness research
It has been suggested that physicians may examine women
who use oral contraceptives more often or more thoroughly
than women who do not. If so, and if an association is observed
between phlebitis and oral contraceptive use, the association
may be due to: - ANSWER-surveillance bias
A cohort study design compares those exposed and those not
exposed to follow
up on ________. - ANSWER-the time in which the
disease developed
randomized control trial - ANSWER-an experiment in which
participants are randomly assigned to different conditions for
the purpose of examining the effectiveness of an intervention
In a randomized trial, a planned crossover design: - ANSWER-
must take into