Table 4 Sensitivity, specificity, positive predictive value and negative predictive value of X-ray imaging 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 (%) | 5.6 | 19 | 55 | 58 |
Specificity (%) | 100 | 100 | 82 | 79 |
Positive predictive value (%) | 100 | 100 | 65 | 64 |
Negative predictive value (%) | 53.8 | 55 | 77 | 78 |