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First Aid for the USMLE Step 2 CK (8th Ed.)
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4 - Epidemiology - Page 99

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First Aid for the USMLE Step 2 CK (8th Ed.) | Medicine (MD/DO) School Study Aid

4 - Epidemiology - Page 99
6 Picmonics to Learn | 8 mins
Cross-Sectional Study
Observational
(Asks) "What's Happening?"
Data at One Specific Point in Time
(Finds) Frequency of Disease
Measurement
Prevalence
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49 secs
Specificity
Characteristics
Rules In
Confirmatory Test
Formula
TN / (TN + FP)
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1 min
Sensitivity
Characteristics
Rules Out
Screening Test
Formula
TP / (FN+TP)
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2 mins
Case Control Study
Observational
Retrospective
Compares those with disease to those without
(Asks) "What happened?"
Measurement
Odds Ratio
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47 secs
Cohort Study
Observational
Longitudinal
Studies risk from exposure
Retrospective
(Asks) "Who developed disease?"
Prospective
(Asks) "Who will develop disease?"
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1 min
Core Ethical Principles
Autonomy
Autonomy
Informed Consent
Confidentiality
Respect Patient Preferences
Beneficence
Beneficence
Advocate and Act in Patient's Best Interest
Nonmaleficence
Nonmaleficence
Avoid Patient Injury
Justice
Justice
Treat Patients Equitably
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2 mins

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