Table 3. Cut-offs for low-moderate and moderate-high disease activity in HUPI.
| Population | Disease activity | AUC | Cut-off point | Se | Sp | LR + | LR - |
|---|---|---|---|---|---|---|---|
| PEARL | Low—Moderate | 0.909 | >5 | 72% | 89% | 3.18 | 0.15 |
| EMECAR | Low—Moderate | 0.945 | >5 | 81% | 92% | 10.03 | 0.21 |
| PEARL | Moderate–High | 0.887 | ≥9 | 72% | 90% | 3.24 | 0.14 |
| EMECAR | Moderate–High | 0.937 | ≥9 | 70% | 93% | 10.45 | 0.32 |
HUPI: Hospital Universitario Princesa Index; AUC: area under curve; Se, sensitivity; Sp, specificity; LR: likelihood ratio EMECAR: Estudio de la Morbilidad y Expresión Clínica de la Artritis Reumatoide; PEARL: Princesa Early Arthritis Register Longitudinal.