Abstract
Part II of this work addresses the use of likelihood ratios for the calculation of a positive predictive value (PPV) and a negative predictive value (NPV) for patient diagnosis. These two values are the most usefull indices in the application of a diagnostic test in order to make a diagnosis for a patient. Furthermore, the relevance of sample size is also addressed by providing background theory and pertinent tables. These basic topics for assessing the validity of a diagnostic test and for performing appropriate and valid case vs control studies are explained in a simple way for a clinical audience with a working example.
| Original language | English |
|---|---|
| Pages (from-to) | 481-488 |
| Number of pages | 8 |
| Journal | Minerva Anestesiologica |
| Volume | 74 |
| Issue number | 9 |
| Publication status | Published - Sep 2008 |
Keywords
- Case-control studies
- Diagnostic tests
- Evidence-based medicine
- Routine
- Sample size
- Statistics as topic
ASJC Scopus subject areas
- Anesthesiology and Pain Medicine
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Cite this
Antonelli, P., Chiumello, D., & Cesana, B. M. (2008). Statistical methods for evidence-based medicine: The diagnostic test. Part II. Minerva Anestesiologica, 74(9), 481-488.