Table 2 Descriptive statistics for NP- and EP-performed ultrasound as a test for detection of soft tissue FBs

Sensitivity

0.783

0.664 to 0.869

0.833

0.552 to 0.953

Specificity

0.5

0.299 to 0.701

0.75

0.301 to 0.954

PPV

0.825

0.706 to 0.902

0.909

0.623 to 0.984

NPV

0.435

0.256 to 0.632

0.6

0.231 to 0.882

LR+

1.567

0.991 to 2.477

3.333

0.599 to 18.543

LR-

0.433

0.226 to 0.831

0.222

0.056 to 0.889