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Table 17 Sensitivity and Specificity of exhaled CO

From: Elevated nitric oxide and carbon monoxide concentration in nasal-paranasal sinus air as a diagnostic tool of migraine: a case – control study

Sensitivity and Specificity

Statistic

Estimate

Standard Error

95% Confidence Limits

Sensitivity

0.4000

0.1095

0.1853

0.6147

Specificity

1.0000

0.0000

1.0000

1.0000

Positive Predictive Value

1.0000

0.0000

1.0000

1.0000

Negative Predictive Value

0.6471

0.0820

0.4864

0.8077