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Diagnostic performance of TSH and age
| Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Odds ratio | Likelihood ratio | Accuracy (%) | |
|---|---|---|---|---|---|---|---|
| TSH ≥ 2.1 mU/l | 65.3 | 55.1 | 47.8 | 71.7 | 2.31 | 1.45 | 59.1 |
| Age ≥ 47 years | 75.5 | 42.3 | 45.1 | 73.3 | 2.26 | 1.31 | 55.1 |
| TSH ≥ 2.1 mU/l and age ≥ 47 years | 44.9 | 76.9 | 55.0 | 69.0 | 2.72 | 1.94 | 64.6 |
| TSH ≥ 2.1 mU/l and/or age ≥ 47 years | 95.9 | 20.5 | 43.1 | 88.9 | 6.06 | 1.21 | 49.6 |
PPV, positive predictive value; NPV, negative predictive value
