Table 2.
Sensitivity and specificity of exit interviews compared to direct observation
| Advice/action | Observations 1 | Occurrences 2 | Sensitivity | Specificity |
|---|---|---|---|---|
| N | N | % (95% CI) | % (95% CI) | |
| Advice: | ||||
| Dosage regimen | 1229 | 1027 | 96.4 (93.6, 98.0) | 53.5 (40.2, 66.2) |
| Dietary | 1251 | 81 | 54.4 (41.9, 66.2) | 94.1 (92.0, 95.6) |
| Adverse effects | 1253 | 36 | 36.2 (16.8, 61.2) | 98.6 (97.6, 99.2) |
| Re-engagement | 1643 | 318 | 57.9 (49.4, 65.9) | 75.2 (70.3, 79.5) |
| Malaria prevention | 1644 | 185 | 69.2 (60.5, 76.7) | 96.9 (95.6, 97.7) |
| Action: | ||||
| RDT/BS completed3 | 1556 | 445 | 94.0 (88.8, 96.8) | 98.1 (95.5, 99.1) |
| Prescription made | 1645 | 1409 | 91.7 (87.8, 94.4) | 97.9 (92.7, 99.4) |
| SP prescribed4 | 1266 | 909 | 83.9 (79.0, 87.7) | 70.6 (63.4, 83.3) |
| 1st dose ingested | 1068 | 548 | 95.5 (93.0, 97.1) | 95.0 (92.4, 96.8) |
| Take away dose | 1067 | 737 | 98.3 (97.1, 98.9) | 88.2 (81.7, 92.6) |
1Observations = the number of participants included in the analysis (i.e. the number of observations carried out); 2Occurrences = the number of times the specified advice/action was observed to have occurred (e.g. in 1027/1229 observed clinical case management cases the participant was provided dosage regimen advice); 3RDT = rapid diagnostic test, BS = bloodslide; 4SP = sulphadoxine-pyrimethamine, SP was the most frequently prescribed antimalarial across the three survey samples and is used here as a measure of how accurately patients/caregivers can recall specific antimalarial medications.