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Intensity of helminth infections in eggs per gram of faeces in 116 schoolchildren by state.
| Sinaloa (n = 64) | Oaxaca (n = 52) | |
| Parasite | Arithmetic mean (interval confidence 95%) | |
| H. nana | 8 (1.4–15) | 10 (1.5–20) |
| A. lumbricoides | 38 (6.6–70) | 7 (1–11) |
| T. trichiura | 54 (19–88) | 35 (11–58) |
