Table 2 Sensitivity, specificity, positive predictive value and negative predictive value of ultrasound signs for MSU and CPP arthritis
From: A prospective evaluation of ultrasound as a diagnostic tool in acute microcrystalline arthritis
MSU symptomatic joint | MSU multiple joints | CPP symptomatic joint | CPP multiple joints | |
|---|---|---|---|---|
Sensitivity (%) | 60 | 84 | 60 | 81 |
Specificity (%) | 92 | 78 | 80 | 62 |
Positive predictive value (%) | 92 | 82 | 60 | 52 |
Negative predictive value (%) | 62 | 77 | 80 | 87 |