12 results
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Epidemiology Equations Sensitivity ... Specificity Sensitivity ... Biostatistics #statistics ... #specificity #PPV ... #NPV
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
Sensitivity is the ... Sensitivity indicates ... that any given case ... #NPV #Formulas ... #Statistics #Matrix
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... Sensitivity (rule ... NPV: proportion ... -> higher NPV ... but not on the causal
It's eye-opening to realize how many tests with reasonable-appearing sensitivity or specificity will end up being
reasonable-appearing sensitivity ... specificity or sensitivity ... #Diagnosis #Statistics ... Classification #Strength #Sensitivity ... #Specificity #Graph
Causes of Encephalopathy - Differential Diagnosis Algorithm
Hyperacute:
 - Primary Neurologic: Vascular (IS, ICH), Seizure, Migraine, Trauma
Causes of Encephalopathy ... Differential Diagnosis Algorithm ... Degenerative, NPH ... Differential #Diagnosis #Algorithm ... #Causes
This requires defining some general cutoff values for likelihood ratios.  These are admittedly arbitrary, but
relationship between sensitivity ... #Diagnosis #Statistics ... #Sensitivity #Specificity ... #Relationship #Graph
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
Differential Diagnosis Algorithm ... Polycythemia - Acquired Causes ... Polycythemia #Vera #PV ... Differential #Diagnosis #Algorithm
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Causes of Primary ... Differential Diagnosis Algorithm ... : • Androgen insensitivity ... Differential #Diagnosis #Algorithm ... #Causes #OBGyn
APVcmv - Adaptive Pressure Ventilation - Controlled Mechanical Ventilation Summary
Most Similar to PRVC - Pressure Regulated
patient trigger and sensitivity ... target volume Casey ... caseyalbin #APVcmv #APV
Chronic Voice Hoarseness - Differential Diagnosis Algorithm
Infectious:
 • Bacterial Infection
 • Fungal Infection (Monilia)
Inflammatory:
 • Chronic
Differential Diagnosis Algorithm ... Benign: Papilloma (HPV ... Differential #Diagnosis #Algorithm ... #Causes