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to Create An Account Before Subscribing
After you create an account, you'll be able to save your custom data and access that data from any account.
You'll also be able to subscribe to access the full Rx-Bayes clinical data set for $1.
Current Data Access:
Free Data Only
Subscription Status:
None
Teaching Links
Learn about Bayes' Theorem
Explanation of Bayes' TheoremMedical Walkthrough & Example
Contact Us
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Questions? Comments? Ideas for Improvement?
Contact Us at: rxbayes@gmail.com
Citation
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Multi Cancer
Pretest
Prevalence
Prevalence in Validation Population
Use Previous Test's Results
Result
Total: 0
Pretest Probability: 0 %
Test(s)
Galleri
Sensitivity: 51.5%
Specificity: 99.5%
Citation
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Appendicitis
Pretest
Alvarado Score
RLQ Tenderness
Elevated Temp > 99.1F (37.3C)
Rebound Tenderness
Hx Migration of Pain to RLQ
Hx Anorexia
Nausea/Vomiting
WBC > 10k
Left Shift
Use Previous Test's Results
Result
Total: 0
Pretest Probability: 4 %
Test(s)
Appy CT AbdPelvis
Sensitivity: 94%
Specificity: 95%
Ultrasound for Appendicitis
Sensitivity: 86.7%
Specificity: 90%
Citation
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Strep Throat
Pretest
McIsaac
Age Range
Exudate or Swelling on Tonsils
Fever > 100.4 deg F (38C)
Anterior Cervical Lymph Node Swelling/Tenderness
Cough
Use Previous Test's Results
Result
Total: 0
Pretest Probability: 1.5 %
Test(s)
Rapid Strep Antigen
Sensitivity: 84%
Specificity: 97%
Citation
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Influenza
Pretest
Prevalence in Local Community
Prevalence in Local Community
Use Previous Test's Results
Result
Total: 0
Pretest Probability: 0 %
Test(s)
Rapid Flu Antigen Swab - Nasal
Sensitivity: 52%
Specificity: 98%
Digital Immunoassay
Sensitivity: 78.5%
Specificity: 98%
Molecular assay (rapid PCR)
Sensitivity: 93%
Specificity: 98%
Citation
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COVID-19
Pretest
Prevalence in Sample
Prevalence in Sample
Use Previous Test's Results
Result
Total: 0
Pretest Probability: 0 %
Test(s)
Symptom
Sensitivity: 70%
Specificity: 60%
RT-PCR: Perfect
Sensitivity: 99.99999%
Specificity: 99.99999%
RT-PCR: Best Case
Sensitivity: 93%
Specificity: 98%
Antigen (Quidel) Published
Sensitivity: 87.5%
Specificity: 99.9%
RT-PCR: Probably
Sensitivity: 70%
Specificity: 95%
Antigen (Probably)
Sensitivity: 67.7%
Specificity: 95%
Antibodies (Best Case)
Sensitivity: 96.9%
Specificity: 99.5%
Citation
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Subarachnoid Hemorrhage
Pretest
Prevalence in Clinical Decision Unit
Prevalence if ER Physician Concerned
Use Previous Test's Results
Result
Total: 0
Pretest Probability: 0 %
Test(s)
CT Non-Contrast
Sensitivity: 99%
Specificity: 99.6%
LP 0 - 500 RBC
Sensitivity: 99.999%
Specificity: 87.5%
LP Tube 4 500 - 1000 RBC
Sensitivity: 90.9%
Specificity: 94.1%
LP Tube 4 1000 - 5000 RBC
Sensitivity: 81.8%
Specificity: 87.5%
LP Tube 4 5000 - 10,000 RBC
Sensitivity: 72.7%
Specificity: 99.999%
LP Tube 4 >70% Decrease vs Tube 1
Sensitivity: 99.9999%
Specificity: 88%
Citation
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Breathalyzer Accuracy
Pretest
Estimate
Your Point of View
Use Previous Test's Results
Result
Total: 0
Pretest Probability: 0 %
Test(s)
Police-grade Breathalyzer
Sensitivity: 97%
Specificity: 93%
Personal Breathalyzer - Brand 1
Sensitivity: 89.5%
Specificity: 64.1%
Personal Breathalyzer - Brand 2
Sensitivity: 94%
Specificity: 50.6%
Personal Breathalyzer - Brand 3
Sensitivity: 26%
Specificity: 97.5%
Citation
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Jewel Merchant
Pretest
Probability of Real Jewel before Testing
If chosen at random, how likely is it to be a real diamond?
Use Previous Test's Results
Result
Total: 0
Pretest Probability: 0 %
Test(s)
Low Quality Detector
Sensitivity: 70%
Specificity: 90%
Diamond Detector
Sensitivity: 99%
Specificity: 99%
Perfect Detector
Sensitivity: 99.9999%
Specificity: 99.9999%
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