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diagnosis falsenegatives testing calculations epidemiology falsepositive falsepositives fecal fobt guaiac interpretation mnemonic pvalues sensitivity specificity accuracy area auc calculator cameronlesions
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix Sensitivity refers to the test's ability to correctly
FalsePositive #FalseNegative ... ConfusionMatrix #Biostatistics
What is Fecal Occult Blood Testing (FOBT) • Screening for colorectal cancer in average risk population
UMassGI #Fecal #OccultBlood ... FalsePositives #FalseNegatives
Important Biostatistics and Epidemiology Equations Sensitivity = TP / (TP + FN) = true positives / disease
Important Biostatistics ... = Rule IN #Biostatistics
Causes of Inaccurate Fecal Occult Blood Test Results False Positive gFOBT: Ingestion of nonhuman heme (eg, meat
#FOBT #Fecal #OccultBlood ... FalsePositive #FalseNegative
TYPE I & TYPE II ERRORS SENSITIVITY & SPECIFICITY = SNOUT & SPIN Sensitive Tests that
Type2 #Errors #Biostatistics
An Overview on P-Values "The widespread use of "statistical significance" (generally interpreted as "p <= 0.05") as
#PValues #BioStatistics
Likelihood Ratios - Probability Remember 2/5/10 and 15/30/45: • LR of 2 increases the probability by 15%
LRs #diagnosis #biostatistics
Cameron lesions are gastric erosions of the mucosal folds near the diaphragmatic hiatus in the presence
Gastroenterology #occultbleed
Misinterpretation of the P-value P-value - Probability for a given statistical model under the null hypothesis
Misinterpretation #biostatistics
USMLE Epidemiology and Biostatistics Summary Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Epidemiology and Biostatistics ... #Epidemiology #Biostatistics
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