Table 3.

Validation of prevalent 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	220	142	64.1 (55.6–72.0)	96.8 (96.2–97.3)	41.4 (34.8–48.2)	98.7 (98.3–99.0)
Age ≥ 60	377	177	61.6 (54.0–68.8)	88.7 (87.4–90.0)	28.9 (24.4–33.8)	96.9 (96.1–97.6)
Gender
Women	182	95	58.9 (48.4–68.9)	96.3 (95.6–96.9)	30.8 (24.2–38.0)	98.8 (98.4–99.2)
Men	415	224	64.3 (57.6–70.6)	91.0 (90.0–92.0)	34.7 (30.1–39.5)	97.2 (96.5–97.8)
Ethnicity
Chinese	152	81	60.5 (49.0–71.2)	96.0 (95.2–96.7)	32.2 (24.9–40.3)	98.7 (98.2–99.1)
Malay	186	107	62.6 (52.7–71.8)	93.4 (92.1–94.5)	36.0 (29.1–43.4)	97.7 (96.8–98.3)
Indian	259	131	64.1 (55.3–72.3)	91.5 (90.3–92.7)	32.4 (26.8–38.5)	97.6 (96.8–98.2)
Education level
Primary/below	397	220	63.6 (56.9–70.0)	92.6 (91.7–93.4)	35.3 (30.6–40.2)	97.6 (97.0–98.1)
Secondary/above	200	98	61.2 (50.8–0.9)	95.3 (94.5–6.0)	30.0 (23.7–36.9)	98.7 (98.2–99.1)