Table 4.
Validation of incident SR-CVD in subgroups.
| Participant Subgroups | No. of Cases (Self-Reported) |
No. of Cases (Diagnosed) |
Sensitivity (95% CI), % |
Specificity (95% CI), % |
PPV (95% CI), % |
NPV (95% CI), % |
|---|---|---|---|---|---|---|
| Age, years | ||||||
| Age < 60 | 104 | 107 | 54.2 (44.3–63.9) | 98.8 (98.5–99.1) | 55.8 (45.7–65.5) | 98.8 (98.4–99.1) |
| Age ≥ 60 | 108 | 127 | 48.0 (39.1–57.1) | 97.8 (97.1–98.4) | 56.5 (46.6–66.0) | 96.9 (96.1–97.6) |
| Gender | ||||||
| Women | 71 | 72 | 48.6 (36.7–60.7) | 98.9 (98.5–99.2) | 49.3 (37.2–61.4) | 98.9 (98.5–99.2) |
| Men | 141 | 162 | 51.9 (43.9–59.8) | 97.9 (97.3–98.4) | 59.6 (51.0–67.7) | 97.2 (96.5–97.8) |
| Ethnicity | ||||||
| Chinese | 32 | 48 | 33.3 (20.4–48.4) | 99.4 (99.0–99.6) | 50.0 (31.9–68.1) | 98.7 (98.2–99.1) |
| Malay | 113 | 93 | 59.1 (48.5–69.2) | 96.6 (95.6–97.4) | 48.7 (39.2–58.3) | 97.7 (96.9–98.4) |
| Indian | 67 | 93 | 51.6 (41.0–62.1) | 99.0 (98.4–99.4) | 71.6 (59.3–82.0) | 97.7 (96.9–98.3) |
| Education level | ||||||
| Primary/below | 145 | 159 | 51.6 (43.5–59.6) | 98.0 (97.5–98.5) | 56.6 (48.1–64.8) | 97.6 (97.0–98.1) |
| Secondary/above | 67 | 74 | 50.0 (38.1–61.9) | 98.9 (98.5–99.3) | 55.2 (42.6–67.4) | 98.7 (98.2–99.1) |