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Table 1
Comparative performances between routine procedure and the Novodiag® Stool Parasites assay on the prospective cohort (n = 249 samples).
| Parasite of interest | Diagnostic strategy | Positive samples (n=) | Negative samples (n=) | False-positive samples* (n=) | False-negative samples* (n=) | Se (%) | Sp (%) |
|---|---|---|---|---|---|---|---|
| Blastocystis spp. | Routine | 27 | 206 | NA | 16 | 62.8 | NA |
| Novodiag® | 43 | 190 | 16 | 0 | 100 | 92.2 | |
| Dientamoeba fragilis | Routine | 0 | 239 | NA | 10 | 0 | NA |
| Novodiag® | 10 | 239 | 0 | 0 | 100 | 100 | |
| Giardia intestinalis | Routine | 2 | 247 | NA | 0 | 100 | NA |
| Novodiag® | 1 | 243 | 4 | 1 | 50 | 98.4 | |
| Cryptosporidium spp. | Routine | 1 | 248 | NA | 0 | 100 | NA |
| Novodiag® | 1 | 248 | 0 | 0 | 100 | 100 | |
| Schistosoma spp.a | Routine | 1 | 243 | NA | 5 | 16.7 | NA |
| Novodiag® | 6 | 243 | 0 | 0 | 100 | 100 | |
| Taenia saginata | Routine | 1 | 248 | NA | 0 | 100 | NA |
| Novodiag® | 1 | 248 | 0 | 0 | 100 | 100 | |
| Enterobius vermicularis | Routine | 2 | 246 | NA | 1 | 66.7 | NA |
| Novodiag® | 3 | 246 | 0 | 0 | 100 | 100 | |
| Trichuris spp. | Routine | 1 | 248 | NA | 0 | 100 | NA |
| Novodiag® | 0 | 241 | 7 | 1 | 0 | 97.2 | |
| Enterocytozoon bieneusi | Routine | 6 | 243 | NA | 0 | 100 | NA |
| Novodiag® | 6 | 243 | 0 | 0 | 100 | 100 |
NA: Not appropriate as routine procedure was considered the reference method (i.e., samples positive by RP were considered true positive).
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