79 results
An Overview on P-Values

"The widespread use of "statistical significance" (generally interpreted as "p <= 0.05") as
Overview on P-Values ... widespread use of "statistical ... scientific process"-Am Statistical ... ASSOC 2016 #PValues ... #BioStatistics
Misinterpretation of the P-value 

P-value - Probability for a given statistical model under the null hypothesis
for a given statistical ... equality of 2 statistical ... implies the statistical ... TerrierBen #PValue ... Misinterpretation #biostatistics
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Important Biostatistics ... Positive Predictive Value ... Negative Predictive Value ... = Rule IN #Biostatistics ... #statistics #Epidemiology
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease

Positive
Positive Predictive Value ... Positive Predictive Value ... Positive Predictive Value ... PositivePredictiveValue #PPV #Biostatistics ... #statistics #Epidemiology
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
Negative Predictive Value ... Negative Predictive Value ... Negative Predictive Value ... NegativePredictiveValue #NPV #Biostatistics ... #statistics #Epidemiology
P-Value Significance - Visualized in number of "heads in a row"

- Jonas Obleser, PhD - https://twitter.com/jonasobleser

#PValues
P-Value Significance ... jonasobleser #PValues ... heads #CoinFlip #Biostatistics
Sensitivity Calculation - Probability that a test correctly identifies those with the disease (true positive rate)

Sensitivity
#sensitivity #Biostatistics ... #statistics #Epidemiology
Specificity Calculation - Probability that a test correctly identifies those without the disease (true negative rate)

Specificity
#Specificity #Biostatistics ... #statistics #Epidemiology
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
violaceous papules & plaques ... Well demarcated plaques ... scaling papules and plaques ... atrophic red/purple plaques ... Diagnosis #Algorithm #causes
Faget's Sign & Liebermeister's Rule
Pulse-Temperature Dissociation
EVERY 1 F RISE IN TEMPERATURE -> HR INCREASES 8-10 BPM
INFECTIOUS
BPM INFECTIOUS CAUSES ... • Fever OTHER CAUSES ... limited predictive value ... There are specific cases ... #differential #causes