GetTheDiagnosis.org

Welcome, guest.
Login or Sign up to edit.

Add an entry

Search:
 

Tools

Add a finding for this diagnosis

Add prevalence for this diagnosis

Switch to calculator mode to see positive predictive value

Switch to likelihood ratios

Sort findings by Tag

Sort findings by Differential Diagnosis

Jump To

Specific Findings

Poorly Diagnostic Findings

Mycoplasma Pneumonia: Sensitivity and Specificity

Introduction: Mycoplasma is one of the causes of an atypical Community Acquired Pneumonia.

[Edit Diagnosis] [Merge dx] [Add prevalence]

Tags: Infection Pulmonary Tag this Diagnosis.

Prevalence

Population / CalculatorPrevalence Comments / Study / Link
10000 0%
More, Edit...

The sensitivity and specificity of findings for Mycoplasma Pneumonia are listed below. See the left navigation bar to change the display.

Specific Findings

Finding SensitivitySpecificity Comments, Study
Mycoplasma PCR Edit 40%100%

sensitivity ~20% in young adults and 9% in children

sensitivity 50% in first 3 weeks of infection

Study: Clin Infect Dis. 2009 May 1;48(9):1244-9. PMID 19331586

Poorly Diagnostic Findings

Finding SensitivitySpecificity Comments, Study
Mycoplasma IgM Edit 40%82%

much more sensitive (90-100%) but less specific in young adults / children

sensitivity 76% in first 3 weeks rising to 100% by 2 months in all comers

Study: Clin Infect Dis. 2009 May 1;48(9):1244-9. PMID 19331586

Mycoplasma IgG + IgM Edit 35%82%

sensitivity higher and specificity lower in young adults / children

sensitivity 33% in first 3 weeks up to 76% at 2 months in all comers

Study: Clin Infect Dis. 2009 May 1;48(9):1244-9. PMID 19331586

Cold Agglutinins Edit Sensitivity = 50%

IgM antibodies; develop 1-2 weeks after infection

Study: Clin Infect Dis 1993 Aug;17 Suppl 1:S79-82. PMID 8399943