Epidemiology final
what is the lr -
0.3
a screening test for newly.... what was the sensitivity...
0.71
what was the predictive ....positive
0.75
what is the overall accuracy
0.88
what was the predictive negative
0.91
what was the specificity....
0.93
in what age group is the YPLL for suicide the greatest
15-24
assuming a life expectancy of 65 years.... 0-4 for accidents
25,938
what is the rate ratio of all malignant cancers to accidents
3.8
what is the crude mortality rate per 100,000 for all causes
818
what is the lr+
9.9
repeatability
RELIABILITY
which of the following is an appropriate interp... lr-
a neg test score is suggestive...
bladder
aaromatic amines
which of the following is not part of the definition of field investigation
all of these are
underlying the estimation of sample size are all of the following
all of these are involved.....
which of the following is not assoc w a phase ii trial
all of these are....
osteoporosis
arsenic
respiratory/ asthma
asbestos
leukemia
benezene
a case control study found a positive assoc between self reported alcohol use during preg and fetal....
bias
the interviewer in a case control study assumed that an assoc existed between alcohol consumption and myo
bias
which of the following types of risk factors is assoc......
bilogic/geneti
a way to control for bias
blind
a cohort study found no statistical assoc between smoking anf coro.....
chance
a case control study showed that a strong negative assoc existed between exerise adn heart disease
confounding
what is the most appropraite type of rate for investigating an outbreak
cumulative incidence
an incxr risk of burkits lymphoma has been assoc w
epstein barr
which of the following designs is potentially most useful for making a judgement about sausality
experimental
precipitating factors are best defined as
factors essential to deve
t/f experimental studies involving randomization are always preffered over nonrandomized studies
false
t/f infant mortality rate is 6 (8 per 1000)
false
t/f surrogate endpoints become particularly useful in randomized controlled trials when......
false
t/f the experimental study is effective when the outcome of the interest is rare
false
t/f the within group design provides less control over confounders than the between group desgin
false
T/F the crude death rate is 801 per 10,000
flase
which of the following is a conctribution of william farr
he promoted
method of concomitant variation
incr numbers of children...
a way to control for a chance finding
incr sample size
method of agreement
increasing trends...
cancer has been assoc w all of the following except
it has been assoc w all
what efect does randomization in a large intervention study have
minimizes potential bias in the allocation of participants to treatment group
an unplanned type of experimental study where the levels of exposure to a presumes causw differ
natural experiment
cancer may be classified as which of the followung
neither a or b
dermatologic
nickel
among the causal criteria presented in the text, temporality....
none of these
the _____ is defined as the reffect on patient outcomes that may occur due to the expectation by a patient that a particular intervention will have an effect
placebo effect
how would you classify an epidemic if the epidemic curve shows a rapid rise, peak, and gradual decrease
point source
liver
radon
a way to control for confounding
randomize
a factorial design may be useful for all of the following reasons EXCEPT
reduce feasibility
which of the following describes lead time bias
screening advances
what is a limitation of using a run in period in an intervention study
the study subjects may differ from the general population
in 2020, the crude death rate was 800 per 100,000 in the US per 100,000 in malaysia.... population as standard
thye wpuld be more similar
t/f age specific mortality rate for persons ages 55 years or older 1,880 per 100000
true
t/f assessment of the clinical findings should be done to assure correctiveness and reliability of the findings
true
t/f establishing a valid statistical assoc is necessaary part of .....
true
t/f polyunsaturatrd fats compared with mono...
true
t/f proportionate mortality ratio for cancer among persons ages 55 years or older is 5%
true
t/f selection of a high risk population of developing the outcomes of interest is a primary strategy to ensure the accumulation of an adequate number of cases that will develop the end points
true
t/f the maternal mortality rate is 156 per 100,000
true
measures what it is supposed to measure
validity
method of difference
valley fever....
lung
vinyl chloride
a valid statistical association in any analytic study design requires....
wgbe ab extrinsic factor influences the disease outcome abd independent
when is it approproate to refer to an epidemic as an outbreak
when it is more localized
amount in a given time period
yield