TABLE 1.
Comparative studies of four factors affecting the recovery of S. stercoralis larvae
| Comparison and factor | No. of larvae per g of stool (mean ± SD) | Pa | Larvae in the plug of debris |
|---|---|---|---|
| Fresh vs preserved stool | |||
| Fresh stool | 462.6 ± 349.7 | <0.001 | Not found |
| Preserved stool | 279.9 ± 195.0 | Numerous | |
| Short vs long time exposure | |||
| Short larva-formalin time exposure | 313.0 ± 276.0 | 0.001 | Not found |
| Long larva-formalin time exposure | 193.3 ± 154.9 | Numerous | |
| Wire mesh vs gauze | |||
| Wire mesh | 268.8 ± 253.0 | <0.001 | Not done |
| Gauze | 184.7 ± 174.1 | Not done | |
| 5-min vs 2-min centrifugation | |||
| 5-min centrifugation | 327.2 ± 467.2 | 0.017 | Not done |
| 2-min centrifugation | 229.2 ± 301.4 | Not done |
a
The P values comparing the values (number of larvae per g of stool) for the two factors in a comparison (e.g., comparing fresh stool to preserved stool).