Table 3.
Common errors by HW participating by HW participating to the external quality assessment according to different provinces of DRC
| Type of error | Photograph | Line | Bandundu | Kinshasa | Bas-Congo | Equateur | K. Occidental | K. Oriental | Katanga | Maniema | Province Orientale | Sud Kivu | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Pan | P.f. | (n = 61) | (n = 284) | (n = 522) | (n = 185) | (n = 454) | (n = 361) | (n = 81) | (n = 128) | (n = 181) | (n = 87) | ||
| Faint and weak lines overlooked | A | + | - | F | 24.6 | 16.5 | 38.7 | 28.6 | 22.9 | 29.6 | 32.1 | 28.9 | 34.3 | 32.2 |
| D | + | F | S | 8.2 | 15.5 | 19.5 | 18.4 | 13.9 | 44.3 | 25.9 | 42.2 | 30.9 | 35.6 | |
| F | + | - | W | 1.6 | 0.0 | 2.3 | 3.2 | 1.5 | 6.1 | 6.2 | 5.5 | 8.8 | 2.3 | |
| H | + | F | - | 1.6 | 0.0 | 0.8 | 2.2 | 2.0 | 1.1 | 1.2 | 2.3 | 5.0 | 0.0 | |
| Failure to distinguish the correct Plasmodium species | D | + | F | S | 0.0 | 2.5 | 2.7 | 3.2 | 2.2 | 4.7 | 13.6 | 1.6 | 3.9 | 6.9 |
| F | + | - | W | 0.0 | 0.4 | 4.4 | 9.2 | 6.2 | 15.0 | 7.4 | 12.5 | 6.1 | 10.3 | |
| H | + | - | M | 0.0 | 0.7 | 3.8 | 7.6 | 4.8 | 5.0 | 9.9 | 10.9 | 2.8 | 9.2 | |
| I | + | S | S | 0.0 | 0.7 | 4.2 | 4.3 | 1.8 | 2.2 | 7.4 | 13.3 | 3.9 | 2.3 | |
| Missing negative test | B | + | - | - | 0.0 | 3.2 | 7.5 | 5.9 | 15.4 | 14.7 | 7.4 | 18.0 | 6.6 | 12.6 |
| E | + | - | - | 3.3 | 3.9 | 7.1 | 8.1 | 17.6 | 19.4 | 8.6 | 21.9 | 18.2 | 9.2 | |
| Missing invalid test | C | - | - | - | 4,9 | 1.4 | 13.4 | 5.4 | 8.4 | 7.8 | 4.9 | 12.5 | 10.5 | 5.7 |
| J | - | - | S | 6,6 | 8.5 | 25.5 | 20.5 | 30.8 | 17.2 | 9.9 | 55.5 | 18.8 | 44.8 | |
The proportions present the % of HW who made errors.
Abbreviations and symbols: C control line, Pan Plasmodium spp. (all four species), P.f. Plasmodium falciparum, − negative (no line present), + positive (visible control line present), F faint positive line intensity compared to the control line, M medium positive line intensity compared to the control line, W weak positive line intensity compared to the control line, S strong positive line intensity compared to the control line.