Table 3.
Sensitivity, specificity, positive predicted value (PPV), and negative predicted value (NPV) for proxy informants, using self-reports as gold standard
| Sensitivity % (95% CI) | Specificity % (95% CI) | PPV % (95% CI) | NPV % (95% CI) | |
|---|---|---|---|---|
| Myocardial infarction (N = 413) | 73 (56–86) | 98 (97–99) | 82 (65–93) | 97 (95–99) |
| Angina pectoris (N = 398) | 69 (55–81) | 98 (96–99) | 84 (71–94) | 95 (92–97) |
| Intermittent claudication (N = 408) | 35 (14–62) | 98 (96–99) | 46 (19–75) | 97 (95–99) |
| Heart failure (N = 394) | 45 (27–64) | 95 (92–97) | 44 (26–62) | 95 (93–97) |
| Atrial fibrillation (N = 400) | 63 (50–75) | 95 (92–97) | 71 (57–82) | 93 (90–96) |
| Hypertension (N = 386) | 73 (67–79) | 94 (88–97) | 95 (91–98) | 67 (60–74) |
| Diabetes mellitus (N = 407) | 78 (64–89) | 98 (96–99) | 84 (69–93) | 97 (95–99) |