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Selected descriptive statistics of helminth eggs (g−1 soil) according to age of use of top soil (n = 15 for less than one-year soils, 11 for one to two years' soils, and 14 for more than two years' soils).
| Median | Maximum | Minimum | Sum | |
|---|---|---|---|---|
| Ascaris | ||||
| <1 yr | 3.5 | 6 | 1 | 50 |
| 1-2 yrs | 2 | 3 | 1 | 26 |
| >2 yrs | 1.5 | 4 | 0 | 25 |
| Hookworm | ||||
| <1 yr | 2 | 3 | 1 | 29 |
| 1-2 yrs | 1 | 3 | 0 | 13 |
| >2 yrs | 1 | 3 | 0 | 13 |
| Whipworm | ||||
| <1 yr | 0 | 1 | 0 | 4 |
| 1-2 yrs | 0 | 1 | 0 | 3 |
| >2 yrs | 0 | 1 | 0 | 3 |
