Table 6 Overall diagnostic performance of NPS and induced sputum samples
Cutoff point | AUC (95% Cl) | P-value | Sensitivity (95%Â Cl) | Specificity (95% Cl) | PPV (%) | NPV (%) |
|---|---|---|---|---|---|---|
Overall CT of NPS | ||||||
 ≤ 31.9 | 0.548 (0.444–0.651) | 0.3651 | 58.0% (43.2–71.8) | 55.71% (43.3–67.6) | 48.3 | 65.0 |
Overall CT of induced sputum samples | ||||||
 ≤ 32 | 0.604 (0.499–0.709) | 0.0418 | 64.0% (49.2–77.1) | 61.43% (49.0–72.8) | 54.2 | 70.5 |