Table 4.
Common errors by HW participating to the external quality assessment according to the health facility (HF) hierarchy
| Type of error | Photograph | Line | Referral Hospital a | Referral Health Center | Health Center | Health Post | Other HF b | ||
|---|---|---|---|---|---|---|---|---|---|
| C | Pan | P.f. | (n = 643) | (n = 248) | (n = 1121) | (n = 118) | (n = 214) | ||
| Faint and weak lines overlooked | A | + | - | F | 23.5 | 29.0 | 31.3 | 62.7 | 15.4 |
| D | + | F | S | 20.1 | 26.6 | 29.3 | 21.2 | 9.8 | |
| F | + | - | W | 2.8 | 4.4 | 3.9 | 1.7 | 1.4 | |
| G | + | F | - | 5.8 | 8.9 | 7.3 | 7.6 | 8.9 | |
| Failure to distinguish th correct Plasmodium species | D | + | F | S | 3.4 | 3.6 | 3.7 | 4.2 | 1.4 |
| F | + | - | W | 4.5 | 7.7 | 9.1 | 6.8 | 3.3 | |
| H | + | - | M | 3.7 | 7.7 | 4.9 | 7.6 | 1.9 | |
| I | + | S | S | 3.3 | 4.0 | 4.1 | 0.8 | 0.9 | |
| Missing negative test | B | + | - | - | 9.0 | 8.1 | 10.7 | 8.5 | 12.1 |
| E | + | - | - | 12.9 | 9.3 | 13.7 | 8.5 | 9.8 | |
| Missing invalid test | C | - | - | - | 6.8 | 6.0 | 10.8 | 5.1 | 5.1 |
| J | - | S | 16.0 | 32.3 | 27.0 | 27.1 | 16.4 | ||
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.
aIncluded 2 HW from provincial reference laboratories.
bOther HF included private laboratories and training institutes.