Risk factor | Sensitivity (%) | Specificity (%) | PPA (%) | NPA (%) |
---|---|---|---|---|
*Figures provided are for the risk of death from all causes rather than sudden death only. | ||||
†Figures provided are for risk of sudden death and/or appropriate ICD discharge. | ||||
‡In this data set from Elliott and colleagues, family history and syncope were combined in order to achieve statistical significance of relative risk. | ||||
LVH, left ventricular hypertrophy; NSVT, non-sustained ventricular tachycardia; VF, ventricular fibrillation; VT, ventricular tachycardia. | ||||
Abnormal blood pressure response: <40 years old19 | 75 | 66 | 15 | 97 |
NSVT: adult <45 years old18 | 69 | 80 | 22 | 97 |
NSVT: ≤21 years old23 | <10 | 89 | <10 | 85 |
Inducible VT/VF: High risk populationw30 | 82 | 68 | 17 | 98 |
*Syncope: <45 years old3 | 35 | 82 | 25 | 86 |
*Family history: at least one unexplained sudden death ± HCM3 | 42 | 79 | 28 | 88 |
†LVH ≥3 cm17 | 26 | 88 | 13 | 95 |
†‡Two or more risk factors2 | 45 | 90 | 23 | 96 |