31 results
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Biostatistics #statistics ... #specificity #PPV ... #NPV
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
Calculation #Table #PPV ... #NPV #Formulas ... #Statistics #Matrix
Posterior Polar Cataract (PPC) - Slit Lamp Ocular Examination

Dr. Sebastian Vega @oftalmopo

#PPC #Posterior #Polar #Cataract #Lens
Polar Cataract (PPC ... @oftalmopo #PPC ... PhysicalExam #clinical #video
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease

Positive
PositivePredictiveValue #PPV ... Biostatistics #statistics
Persistent Pupillary Membrane (PPM) on Slit Lamp Ocular Examination

This membrane would be a remainder of the
Pupillary Membrane (PPM ... @oftalmopo #PPM ... PhysicalExam #clinical #video
DIY Respirator

Innovative technique to create a cheap, reusable, elastomeric respirator for use during critical N95 supply
brie_slatnick Video ... Facemask #N95 #PPE
COVID-19 Intubation Checklist

Personal protective equipment (PPE)
 • Standard PPE
   • N95 or PAPR.
protective equipment (PPE ... ) • Standard PPE ... Stuff • Video ... Meticulous removal of PPE ... after removal of PPE
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
a dual-chamber PPM ... JVP #Clinical #Video
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
NegativePredictiveValue #NPV ... Biostatistics #statistics
This requires defining some general cutoff values for likelihood ratios.  These are admittedly arbitrary, but
#Diagnosis #Statistics ... #Relationship #Graph