TABLE 4.
Sensitivity, specificity, accuracy, positive predictive value (PPV) and negative predictive value (NPV) of electrocardiographical parameters in predicting left ventricular systolic dysfunction
| Sensitivity | Specificity | PPV | NPV | |
|---|---|---|---|---|
| Maximal QRS duration ≥124 ms | 49.1 (39.7–58.4) | 81.1 (65.8–90.5) | 88.1 (77.5–94.1) | 35.7 (26.3–46.4) |
| Goldberger’s first criterion* | 32.1 (23.9–41.4) | 94.6 (82.3–98.5) | 94.4 (81.9–98.5) | 32.7 (24.6–42.1) |
| Goldberger’s third criterion* | 63.2 (53.7–71.8) | 83.8 (68.9–92.3) | 91.8 (83.2–96.2) | 44.3 (33.3–55.9) |
| Maximal QRS duration + Goldberger’s first criterion* | 20.8 (14.1–29.4) | 94.6 (82.3–98.5) | 91.7 (74.2–97.7) | 29.4 (22.0–38.1) |
| Maximal QRS duration + Goldberger’s third criterion* | 32.1 (24.0–41.5) | 94.6 (82.3–98.5) | 94.4 (81.9–98.5) | 32.7 (24.6–42.1) |
| Maximal QRS duration + Goldberger’s first and third criteria* | 14.2 (8.8–22.0) | 100 (90.6–100) | 100 (79.6–100) | 28.9 (21.8–37.3) |
Data presented as % (95% CI). Criteria defined in Goldberger (19)