Table 2.
Evaluation of the candling method in the recovery of ascaridoid larvae in the different fish parts.
| Fish part | n | Infected parts | Positivity rate (%) (95% CI) | NPV (%) (95% CI) | Se (%) (95% CI) | nl | % C | |||
|---|---|---|---|---|---|---|---|---|---|---|
| C | T | C | T | C | T | |||||
| Anterior part | 188 | 13 | 38 | 7 (4–12) | 20 (15–27) | 86 (80–91) | 34 (20–51) | 48 | 250 | 19 |
| Belly flaps | 51 | 7 | 20 | 14 (6–26) | 39 (26–54) | 70 (55–83) | 35 (15–59) | 70 | 297 | 24 |
| Medial part | 201 | 13 | 41 | 6 (3–11) | 20 (15–27) | 85 (79–90) | 32 (18–48) | 54 | 184 | 29 |
| Posterior part | 175 | 1 | 9 | 1 (0.01–3) | 5 (2–10) | 95 (91–98) | 11 (0–48) | 2 | 15 | 13 |
| Total | 615 | 34 | 108 | 6 (4–8) | 18 (15–21) | 87 (84–90) | 31 (23–41) | 174 | 746 | 23 |
With the number of fish parts (n); the number of infected fish parts by candling (C) and total (T); the positivity rate (%) with 95% confidence interval (95% CI); the negative predictive value (NPV) and sensitivity (Se) of candling with 95% confidence interval; the number of larvae (nl); and the percentage of the total number of larvae that were recovered with candling (%C).