Symptom | Agreement (%) | Cohen’s kappa | p-value a | Sensitivity (%) | Specificity (%) | PPV b | NPV c | Prevalence (%) |
---|---|---|---|---|---|---|---|---|
Fever | 83.5 | 0.59 | < 0.01 | 90.4 | 67.1 | 86.8 | 74.6 | 70.5 |
Cough | 82.3 | 0.64 | < 0.01 | 91.5 | 71.0 | 79.3 | 87.4 | 54.9 |
Diarrhoea | 84.4 | 0.57 | < 0.01 | 86.1 | 84.0 | 54.4 | 96.5 | 18.1 |
Vomiting | 76.4 | 0.42 | < 0.01 | 67.2 | 79.3 | 51.3 | 88.2 | 24.5 |