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Parasitology of pica samples
| Substance | No. of ‘acceptable’ samples analysed | Mean grams consumed daily | No. of ‘acceptable’ samples with helminths of risk to humans | No. of ‘rejected’ samples analysed | No. of ‘rejected’ samples with helminths of risk to humans |
|---|---|---|---|---|---|
| Ash | 1 | 14.9 | 0 | 1 | 0 |
| Cement | 1 | 39.1 | 0 | 1 | 0 |
| Charcoal | 5 | 7.5 | 1 | 5 | 0 |
| Earth | |||||
| Mchanga | 1 | 12.5 | 0 | 1 | 0 |
| Udongo | 12 | 25.1 | 0 | 12 | 0 |
| Ufue | 3 | 26.5 | 0 | 3 | 1 |
| Vitango pepeta | 5 | 28.1 | 0 | 5 | 0 |
| Whitewash | 1 | 5.0 | 0 | 2 | 0 |
| Total | 29 | 1 | 30 | 1 | |
