Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Sensitivity (SN), Specificity (SP), Positive predictive value (PPV), Negative predictive value (NPV) of individual and summed ECG features.
| ECG characteristics | SN(%) | SP(%) | PPV(%) | NPV(%) |
|---|---|---|---|---|
| BBB/FB | 41 | 95 | 90 | 59.4 |
| Fragmented QRS | 69.3 | 100 | 100 | 86 |
| Low QRS voltage | 45.4 | 85 | 76.9 | 58.6 |
| Any one of the above three present | 90.9 | 75 | 80 | 88.2 |
