ZN; no. (%) |
---|
Report | Positive | Negative | Total |
---|
Positive CS | 23(6.4) | 0(0) | 23(6.4) |
Negative | 1(0.3) | 338(93.4) | 339(93.6) |
Total | 24(6.6) | 338(93.4) | 362(100) |
- ZN Ziehl-Neelsen, CS Cold stain; Positive = any positive (scanty, 1+, 2+ and 3+); Negative = no Acid fast bacilli per oil immersion in at least 100 fields; Sensitivity = 95.8%; Specificity = 100%; Positive predictive value =100%; Negative predictive value = 99.7%; Agreement = 99.7; Kappa (κ) = 0.98.