353 results
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Important Biostatistics ... = Rule IN #Biostatistics ... #specificity #PPV ... #NPV
Tuberculin Skin Test (Positive Mantoux Test) Result, Reading and Interpretation

#Diagnosis #Tuberculosis #LatentTB #Tuberculin #SkinTest #TST #Interpretation
Tuberculin Skin Test ... Positive Mantoux Test ... Tuberculin #SkinTest #TST ... Thresholds #Diameters #PPD ... GrepMed Recommended Text
Tuberculosis Skin Test Interpretation

#Diagnosis #Tuberculosis #LatentTB #Tuberculin #SkinTest #TST #Interpretation #Induration #Thresholds #Diameters #PPD
Tuberculosis Skin Test ... Tuberculin #SkinTest #TST ... Thresholds #Diameters #PPD
Identify a Positive Tuberculosis (TB) Skin Test
#Diagnosis #Tuberculosis #LatentTB #Tuberculin #SkinTest #TST #Interpretation #Induration #Thresholds #Diameters
Tuberculosis (TB) Skin Test ... Tuberculin #SkinTest #TST ... Thresholds #Diameters #PPD
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Epidemiology and Biostatistics ... PPV: proportion ... prevalence is low, then PPV ... specificity -> higher PPV ... #Epidemiology #Biostatistics
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
the screening test ... identified by the test ... the screening test ... Calculation #Table #PPV ... #NPV #Formulas
â–º
IDSA Recommendations for Preventing Human Papillomavirus Infections and Cervical Cancer Screening for Women with in HIV-AIDS
Recommendations
• Pap test should ... and HPV test) is ... First Episode of HPV ... Schedules • HPV ... and 6 months #HPV
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
Specificity of a test ... disease, who will test ... ConfusionMatrix #Biostatistics
TYPE I & TYPE II ERRORS 

SENSITIVITY & SPECIFICITY = SNOUT & SPIN 
Sensitive Tests that
SPIN Sensitive Tests ... Disease Specific Tests ... Type2 #Errors #Biostatistics
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease

Positive
with a positive test ... PositivePredictiveValue #PPV ... #Biostatistics