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Pop Health
Just the basics
37
Other
Graduate
04/28/2010

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Term
Formula representing the relationship between Prevalence and incidence
Definition
P= I x D
Term
Name the descriptive studies
Definition
case report/series, cross-sectional, correlation
Term
Name the analytical studies
Definition
interventional, cohort, case control
Term
The type of study that uses data from entire populations to compare disease frequencies among different groups during the same period of time, or among the same population at different times
Definition
Correlation
Term
Does a correlation study track data of populations or individuals
Definition
populations
Term
The type of study with careful, detailed report of the profile of a single patient with respect to factors that could be related to illness or outcome
Definition
Case report
Term
The type of study with careful, detailed reporting of the profiles of a series of patients with respect to factors that could be related to illness or outcome
Definition
Case Series
Term
A study that is a snapshot in time, where information on exposed/nonexposed and outcome of individuals are assessed simultaneously
Definition
Cross-sectional
Term
An observational study for which participants are selected on the basis of exposure status
Definition
Cohort
Term
An observational study for which the participant are selected on the basis of disease status
Definition
Case-control
Term
A study in which exposures are allocated by investigators
Definition
Interventional
Term
Study type that is ideal for rare outcomes and multiple exposures with a single outcome
Definition
Case-control
Term
Study type ideal for rare exposures and multiple outcomes of a single exposure
Definition
Cohort
Term
Limitations of an intervention study
Definition
ethical issues, cost, compliance, loss to follow-up
Term
Type of study that is good for detecting small to moderate-sized effects
Definition
Intervention
Term
In what type of study do you calculate an odds ratio?
Definition
Case-control
Term
An RR of 1 means what?
Definition
No association ( null hypothesis is not excluded)
Term
Is a wide or narrow confidence interval more precise?
Definition
Narrow
Term
Formula for an odds ratio
Definition
ad/cb
Term
external validity
Definition
generalizability
Term
internal validity
Definition
valid statistical association
Term
p-value
Definition
probability that the null hypothesis is true
Term
the range of values around the observed RR within which the true RR lies with a specified degree of confidence
Definition
Confidence interval
Term
Name the bias: investigators elicit or interpret information differentially between the groups
Definition
interviewer bias
Term
Name the bias: study subjects report events differentially between the groups
Definition
recall bias
Term
Name the bias: Noncomparable information is obtained from the different study groups
Definition
Observation bias
Term
Name the bias: Noncomparable criteria between the groups are used to enroll participants in a study
Definition
Selection bias
Term
Detected by comparing stratum-specific estimates of the measure of effect
Definition
Effect modification
Term
Sensitivity
Definition
the number that test positive out of those that have the disease
Term
Specificity
Definition
the number that test negative out of those that don't have the disease
Term
Cumulative incidence
Definition
CI = # of new cases of a disease during a given period of time/Total population at risk
Term
Risk ratio
Definition
cumulative incidence of the exposed/ cumulative incidence of the unexposed
Term
rate ratio
Definition
incidence rate of the exposed/ incidence rate of the unexposed
Term
Attributable risk
Definition
cumulative incidence of the exposed- cumulative incidence of the unexposed
or
Incidence rate of the exposed- incidence rate of the unexposed
Term
Attributable risk percent
Definition
(CIe –CIo)/CIe
or
(IRe –IRo)/IRe
or
(OR-1)/OR (case control)
Term
Bias
Definition
any differential (systematic) error in the estimation of the association between an exposure and a disease
Term
misclassification
Definition
Any error in the accuracy of the collection of data on exposure or outcome
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