TABLE 3. Cutoff Points and Detection Rates for Extravasation Using Thermographically Revealed Temperature Decrease per Centimeter From Margin to Center of Low-Temperature Regions as an Indicator.

Reduction Rate	Sensitivity	Specificity	PPV	NPV
<0.6°C/cm	57.7	96.5	65.2	95.3
<0.7°C/cm	84.6	94.8	64.7	98.2
<0.8°C/cm	88.5	93.9	62.2	98.6

Abbreviations: NPV, negative predictive value; PPV, positive predictive value.