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Table 2 Sensitivity and specificity of exit interviews compared to direct observation

From: The exit interview as a proxy measure of malaria case management practice: sensitivity and specificity relative 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)
  1. 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.