Laboratory performance in microscopic stool examination for clinical parasitology (2022)
Trial no. | Specimen no. | No. of participants | Organisms identified with acceptable accuracy | No. (%) | Organisms identified with unacceptable accuracy | No. (%) |
---|---|---|---|---|---|---|
Trial I | MPI-22-01 | 208 | Cryptosporidium sp. | 205 (98.6) | Cystoisospora (Isospora) belli oocysts | 1 (0.5) |
Strongyloides stercoralis larva | 1 (0.5) | |||||
Giardia lamblia | 1 (0.5) | |||||
MPS-22-01 | 207 | Metagonimus yokogawai | 127 (61.4) | Clonorchis sp. | 71 (34.3) | |
No parasite seen | 8 (3.9) | |||||
Paragonimus sp. | 1 (0.5) | |||||
MPF-22-01 | 203 | No parasite seen | 203 (100) | |||
Trial II | MPI-22-02 | 209 | Strongyloides stercoralis larva | 207 (99.0) | Enterobius vermicularis | 2 (1.0) |
MPS-22-02 | 209 | No parasite seen | 208 (99.5) | Taenia sp. | 1 (0.5) | |
MPF-22-02 | 202 | Anisakis spp. | 178 (88.1) | Ascaris sp. | 13 (6.4) | |
Enterobius vermicularis | 7 (3.5) | |||||
Hookworm | 2 (1.0) | |||||
Trichuris trichiura | 1 (0.5) | |||||
No parasite seen | 1 (0.5) | |||||
Trial III | MPI-22-03 | 209 | Trichuris trichiura | 207 (99.0) | Clonorchis sp. | 2 (1.0) |
MPS-22-03 | 209 | No parasite seen | 206 (98.6) | Strongyloides stercoralis larva | 2 (1.0) | |
Paragonimus sp. | 1 (0.5) | |||||
MPF-22-03 | 204 | No parasite seen | 198 (97.1) | Ascaris sp. | 2 (1.0) | |
Cystoisospora (Isospora) belli oocysts | 2 (1.0) | |||||
Strongyloides stercoralis larva | 1 (0.5) | |||||
Trichuris trichiura | 1 (0.5) | |||||
Subtotal | MPI | 626 | 619 (98.9) | 7 (1.1) |
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MPS | 625 | 541 (86.6) | 84 (13.4) |
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MPF | 609 | 579 (95.1) | 30 (4.9) |
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Total | 1,860 | 1,739 (93.5) | 121 (6.5) |
*Statistically significant differences were observed in the agreement rates between MPS and MPI/MPF samples (P<0.0001, in both). †Statistically significant differences were observed in the agreement rates between MPF and MPI samples (P<0.0001).