73 results
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Important Biostatistics ... = Rule IN #Biostatistics ... #specificity #PPV ... #NPV
Fungal Biomarkers: Comparing Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
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Spec -80% for IA, PPV ... < 50%, NPV > 90% ... Galactomannan #diagnosis #comparison
What's in a Blood Gas? VBG vs ABG

BOTTOM LINE: VBG is less painful, more easily obtained
sensitivity & 100% NPV ... Differences #Versus #Comparison
Insulin Comparison Chart - Peak and Duration

Inhaled, Rapid-acting (Analog), Regular, Intermediate-Acting (NPH), Detemir, Glargine, Degludec

- Stephen
Insulin Comparison ... Intermediate-Acting (NPH ... #Insulin #Comparison
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Epidemiology and Biostatistics ... PPV: proportion ... NPV: proportion ... sensitivity -> higher NPV ... #Epidemiology #Biostatistics
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
it has a narrow focus ... Calculation #Table #PPV ... #NPV #Formulas
Insulin Comparison Chart

Insulin Types - Onset (hours) - Peak Glycemic Effect (hours) - Duration (hours)
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Insulin Comparison ... Protamine + Lispro, NPH ... 10 #Insulin #Comparison
Posterior chamber pathology comparison on Ocular POCUS:
- vitreous hemorrhage
- vitreous detachment
- retinal detachment

#Posterior #chamber #pathology #Ocular
chamber pathology comparison ... on Ocular POCUS ... pathology #Ocular #POCUS ... Detachment #Hemorrhage #Comparison
The graph illustrates the differences in the onset and duration of action for various types of
glulisine), Regular, NPH ... Timeline #Graph #Comparison
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
NegativePredictiveValue #NPV ... #Biostatistics