TABLE 3.
Test | VI | Total | |
---|---|---|---|
Positive | Negative | ||
PCR | |||
Positive | 35 | 69 | 104 |
Negative | 0 | 72 | 72 |
Total | 35 | 141 | 176 |
A kappa value < 0.0 is considered a poor agreement, 0.21–0.40 fair agreement, 0.41–0.60 moderate agreement, 0.61–0.80 substantial agreement and 0.81–1.00 good agreement.
PCR, polymerase chain reaction; VI, virus isolation.