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| PINI (Reference biological test) |
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| Severe | Moderate | ||||
| Z-Scores (Clinical test) | Severe | A = 35 | B = 5 | PPV = A/A + B = 35/45 = 0.87 | |
| Moderate | C = 50 | D = 5 | NPV = D/C + D = 5/55 = 0.1 | ||
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| Sensibility = A/A + C | Specificity = B/B + D |
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| 35/85 = 0.42 | 5/10 = 0.5 |
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