Table 5. Sensitivity, specificity and area under curve value of the case definitions tested for detection of influenza, GROG study, France, 2009–2014 .
Case definition | Sensitivity % (95% CI) |
Specificity % (95% CI) |
AUC % (95% CI) |
---|---|---|---|
ECDC ILI | 96.1 (95.5–96.6) | 6.6 (6.1–7.1) | 0.513 (0.504–0.523) |
CDC ILI | 95.7 (95.2–96.2) | 7.3 (6.8–7.9) | 0.515 (0.506–0.524) |
WHO | 89.8 (89.0–90.6) | 21.4 (20.6–22.3) | 0.556 (0.547–0.566) |
AUC: area under curve; CDC: Centers for Disease Control and Prevention; CI: confidence interval; ECDC: European Centre for Disease Prevention and Control; GROG: Groupes Régionaux d’Observation de la Grippe; ILI: influenza-like illness; WHO: World Health Organization.