Table 2.
Interpretation and execution of RDTs by CHWs
| Study | CHW training | Outcome interpretation | Outcome execution |
|---|---|---|---|
|
Counihan[18] |
Half-day training. At 3 months CHWs received a poster-sized job aid and a photographic guide on RDT interpretation. |
(I) RDT test results correctly read by 95.1, 98.3 and 98.3% of the CHWs at 3, 6 and 12 months after training respectively. |
19-item checklist, interpretation included, 8 items were considered critical. |
| (II) Correct interpretation of positive RDT results was 96.5% at 3 months, 98.3% at 6 months and 90.5% at 12 months. |
Median correctly performed critical steps were 87.5%, 100% and 100% at 3, 6 and 12 months respectively. |
||
| (II) Correct interpretation of negative RDT results was 94.3% at 3 months, 97.9% at 6 months and 94.7% at 12 months. |
40.3, 61.7 and 79.7% of CHWs correctly performed critical RDT steps at 3, 6 and 12 months respectively. |
||
| (II) Faint positive lines were correctly interpreted by 89.7% at 3 months, 96.7% at 6 months and declined to 76.7% at 12 months. |
|
||
|
Mukanga[32] |
8-day training by experienced trainers. Job aid provided. |
100% of the RDTs were correctly interpreted shortly after training (<2 weeks). |
96.3% of RDTs were correctly performed shortly after training (<2 weeks) in a 14-item checklist, interpretation excluded. |
|
Harvey[19] |
Group 1: only use of manufacturers’ instructions. Group 2: only use of job aid. Group 3: 3- hour training on RDTs + job aid. |
(I) 72, 86 and 96% of CHWs correctly interpreted RDT results for group 1, 2 and 3 respectively. |
57% of steps, 80% of steps and 90% of steps were correctly performed by group 1, 2 and 3 respectively at the same day of receiving instructions, job aid or training in a 16-item checklist, interpretation included. |
| (II) 54, 82 and 93% of tests were correctly interpreted for group 1, 2 and 3 respectively. | |||
|
Hawkes[21] |
One day training. Pictorial job aid was provided. |
100% of CHWs correctly interpreted the RDT directly after training. |
Median score on a WHO 16-item assessment of RDT performance was 100% (range of 94-100%) directly after training. |
|
Ndiaye[20] |
CHWs: one month theoretical training, one month practical training at health post. CMDs: 3-day theoretical training, 15 days practical training at health post. |
- |
% CHWs and CMDs correctly performing the step, observed over two years. |
| (1) Surface clean and flat - 87% | |||
| (2) Test opened just before use - 100% | |||
| (3) Document patient name and date - 83% | |||
| (4) Use of gloves - 0% | |||
| (5) 5 μL finger prick blood specimen - 93% | |||
| (6) 4 drops of solution buffer in right well - 93% | |||
| (7) test rest on level surface - 97% | |||
| (8) waited maximum 15 minutes - 93% | |||
| Mubi[24] | One week training. | 99.7% of positive tests were correctly interpreted throughout the 5-month study period. | - |
(I) Based on assessment of RDTs.
(II) Based on photographic assessment.