Table 3.
Results for the chi-squared test and kappa coefficients for the four Map detection methods
| HYDEqPCR | Faecal culture | Milk ELISA | |
|---|---|---|---|
|
HYDEqPCR | |||
| N |
|
141 |
|
| chi-squared |
|
4.275 |
|
| P |
|
0.039 |
|
| Kappa |
|
0.059 |
|
|
Milk qPCR | |||
| N |
91 |
91 |
91 |
| chi-squared |
0.289 |
0.841 |
0.575 |
| P |
0.591 |
0.359 |
0.448 |
| Kappa |
-0.027 |
0.084 |
-0.022 |
|
Milk ELISA | |||
| N |
91 |
91 |
|
| chi-squared |
0.111 |
5.123 |
|
| P |
0.739 |
0.024 |
|
| Kappa | 0.002 | 0.107 | |
n: number of samples.
p ≤0.05 indicates significant association between test results.
Kappa coefficient value of 1.00 indicates perfect agreement and a value of 0.00 indicates that any agreement is no better than chance.