Table 3.
Comparison of IFAT and CS n-PCR, BC n-PCR, and LN-CE in the diagnosis of CanLa
| Test | Result | IFAT (cutoff, 1:160) |
% LR (95% CI) |
κ value | ||
|---|---|---|---|---|---|---|
| Positive | Negative | Positive | Negative | |||
| CS n-PCR | Positive | 39 | 16 | 71.6 (61.1–80) | 92.2 (89.2–94.6) | 0.75 |
| Negative | 15 | 183 | ||||
| BC n-PCR | Positive | 19 | 3 | 50 (34.1–65.9) | 91.2 (87.4–95) | 0.70 |
| Negative | 35 | 196 | ||||
| LN-CE | Positive | 36 | 0 | 80 (68.3–91.7) | 95.7 (92.9–98.4) | 0.76 |
| Negative | 18 | 199 | ||||
a
IFAT, indirect immunofluorescence antibody test; LR, likelihood ratio; CI, confidence interval; CS n-PCR, n-PCR on conjunctival swab; BC n-PCR, n-PCR on buffy coat; LN-CE, cytological examination of lymph node aspirate.