Table 2. Helminth egg recovery rates using different detergents for hand washing.
| Detergent | Previous detergenta | Number of replicates | Mean number of eggs recovered for 90µl contamination dose (Standard deviation) | Mean egg recovery rate (%) (95% CI) |
| Deionized water | ||||
| Laboratory soap | 26 | 805.8 (221) | 80.3 (69.8 – 90.9) | |
| 7X and laboratory soap | 5 | 871.1 (137.4) | 86.9 (70.0–100) | |
| Benzethonium chloride and laboratory soap | 3 | 968.5 (16) | 96.6 (94.1 – 99.0) | |
| Any previous detergent | ∑ 34 | 829.7 (207.1) | 82.7 (74.3 – 91.1) | |
| 7X 1% | ||||
| Laboratory soap | 6 | 937 (179.9) | 93.4 (78.0 – 100) | |
| 7X and laboratory soap | 5 | 980 (53.1) | 97.7 (92.8 – 100) | |
| Benzethonium chloride and laboratory soap | 7 | 962.7 (120.4) | 96.0 (86.7 – 100) | |
| Any previous detergent | ∑18 | 958.9 (124.9) | 95.6 (89.6 – 100) | |
| Benzethonium chloride 0.1% | ||||
| Laboratory soap | 5 | 800 (180.7) | 79.8 (59.9 – 99.6) | |
| 7X and laboratory soap | 5 | 900 (194.9) | 89.7 (70.7 – 100) | |
| Benzethonium chloride and laboratory soap | 8 | 927.8 (155.4) | 92.5 (80.9 – 100) | |
| Any previous detergent | ∑18 | 884.6 (172.1) | 88.2 (79.2 – 97.2) | |
| Deionized water | ||||
| None | 16 | 724.6 (238.3) | 72.2 (56.1 – 88.4) | |
a
Previous detergent used on hands before the rinse was performed.