466 results
An Overview on P-Values

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

P-value - Probability for a given statistical model under the null hypothesis
P-value - Probability ... results 1) P-value ... hypothesis 3) P-value ... 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
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
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
Hypotension - Guidelines for Crises in Anaesthesia

Hypotension is commonly due to unnecessarily deep anaesthesia, the autonomic
hypovolaemia or combined causes ... system including valves ... intrathoracic pressure can cause ... o Endocrine cause ... Checklist #Diagnosis #Management
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
Genital Lesions - Differential Diagnosis Algorithm
Elevated - Vesicles:
 • Herpes simplex
Elevated - Papules / Plaques -
Elevated - Papules / Plaques ... Elevated - Papules / Plaques ... Elevated - Papules / Plaques ... Diagnosis #Algorithm #causes
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Epidemiology and Biostatistics ... Proves cause-effect ... how related two values ... but not on the causal ... #Epidemiology #Biostatistics
Acute Kidney Injury - Differential Diagnosis Framework
PRERENAL:
 - Intrarenal vasoconstriction-hemodynamically mediated
 - Systemic vasodilation
 - Volume
urinalysis, labs - Management ... or pigmented casts ... renal biopsy - Management ... treating underlying cause ... ultrasonography - Manaqement