| Tests | Post mortem examination | Sub-total | Kappa | ||
| Negative | Positive | ||||
| Direct smear | Negative | 47 | 5 | 52 | 0.7157 |
| Positive | 0 | 8 | 8 | ||
| Subtotal | 47 | 13 | 60 |
| |
| Sedimentation | Negative | 47 | 2 | 49 | 0.896 |
| Positive | 0 | 11 | 11 | ||
| Subtotal | 47 | 13 | 60 | ||