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Human Immunodeficiency Virus: Sensitivity and Specificity

Introduction: None written.

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Tags: Infection Tag this Diagnosis.

Prevalence

Population / CalculatorPrevalence Comments / Study / Link
1000 2%
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The sensitivity and specificity of findings for Human Immunodeficiency Virus are listed below. See the left navigation bar to change the display.

Pre-Test Probability (Prevalence): %. Post-Test Probability (Predictive Value): %. Switch to display mode.
**Note that calculating probabilities from more than one finding is inherently inaccurate because findings are not independent. (For example, using two positive findings that share a common pathogenesis is likely to overestimate the true probability.)
Sensitive and Specific Findings
FindingResult SensitivitySpecificity
[ + ] p24 Antigen + 0 - 89%100%
[ + ] Blood Rapid Antibody Test + 0 - 99.7%99.9%
[ + ] Western Blot + 0 - 99.3%99.7%
[ + ] HIV RNA PCR + 0 - 100%97%
[ + ] Oral Rapid Antibody Test + 0 - 99.9%96.9%
Specific Findings
FindingResult SensitivitySpecificity
[ + ] Genital Ulcer + 0 - 8%99%
[ + ] genital wart + 0 - 2%99%
[ + ] Swollen Lymph Nodes + 0 - 11%98%
[ + ] Diarrhea + 0 - 8%98%
[ + ] Emesis + 0 - 13%97%
[ + ] nausea + 0 - 10%97%
[ + ] Weight loss + 0 - 21%96%
[ + ] Arthralgia + 0 - 16%96%
[ + ] Oral ulcer + 0 - 13%96%
[ + ] Night Sweats + 0 - 12%96%
[ + ] Rash + 0 - 6%96%
[ + ] Fatigue + 0 - 22%92%
[ + ] Headache + 0 - 18%91%
[ + ] Fever + 0 - 33%90%
Findings With Unspecified Accuracy
FindingResult SensitivitySpecificity
[ + ] Thrush No accuracy specified.
[ + ] Salivary gland enlargement, bilateral No accuracy specified.