Table 3.
Optimal SediVue (SW1.0.1.3) thresholds for the detection of formed elements in urine based on ROC analysis with corresponding sensitivities and specificities, as compared to manual microscopy
| Optimal threshold | Sensitivity (95% CI) | Specificity (95% CI) | |
|---|---|---|---|
| RBC | 6.5/hpf | 88.3% (82.5%‐92.7%) | 92.8% (89.6%‐95.2%) |
| WBC | 6.5/hpf | 83.3% (75.7%‐89.4%) | 92.6% (89.6%‐94.9%) |
| sqEPI | 0.2/hpf | 75.0% (53.3%‐90.2%) | 90.3% (87.4%‐92.8%) |
| nsEPI | 0.9/hpf | 75.0% (61.6%‐85.6%) | 85.9% (82.4%‐88.9%) |
| STR | 1.0/hpf | 90.6% (84.1%‐95.0%) | 84.4% (80.5%‐87.8%) |
| CaOx Di | 0.3/hpf | 84.6% (71.9%‐93.1%) | 97.9% (96.2%‐99.0%) |
Abbreviations: CaOx Di, calcium oxalate dihydrate crystals; CI, confidence intervals; hpf, high power field; nsEPI, non‐squamous epithelial cells; RBC, red blood cells; sqEPI, squamous epithelial cells; STR, struvite crystals; WBC, white blood cells.