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Sensitivity and specificity of laboratory culture and rapid strep test in patients not recently treated for streptococcal pharyngitis
| Variables | Percentage (%) | 95% Confidence Interval (%) |
|---|---|---|
| Sensitivity | 80 | 69–91 |
| Specificity | 100 | 99–100 |
| Positive Predictive Value | 100 | 99–100 |
| Negative Predictive Value | 96 | 93–98 |
| False‐positive rate | 0 | 0–0.12 |
| False‐negative rate | 20 | 9–30 |
