Table 1.

Demographic Characteristics of People Aged ≥40 Years With Angina Symptomatology (Rose Questionnaire) by Time Period: NHANES, 1988 to 2012

	NHANES III		2001–2004		2005–2008		2009–2012
Characteristics	n	% (95% CI)	n	% (95% CI)	n	% (95% CI)	n	% (95% CI)
Age, y
40–64	275	60.1 (54.2–65.7)	134	65.4 (56.1–73.6)	159	65.8 (60.5–70.7)	163	71.7 (64.9–77.6)
65+	297	39.9 (34.3–45.8)	125	34.6 (26.4–43.9)	108	34.2 (29.3–39.5)	91	28.3 (22.4–35.1)
Total	572	100.00	259	100.00	267	100.00	254	100.00
Sex
Women	339	61.2 (53.7–68.1)	146	58.9 (50.7–66.7)	164	63.8 (56.3–70.7)	141	60.7 (51.1–69.5)
Men	233	38.8 (31.9–46.3)	113	41.1 (33.3–49.3)	103	36.2 (29.3–43.7)	113	39.3 (30.5–48.9)
Total	572	100.00	259	100.00	267	100.00	254	100.00
Race
Non-Hispanic	294	79.2 (74.3–83.3)	156	75.1 (67.0–81.8)	134	70.3 (62.4–77.2)	96	58.8 (47.8–68.9)
white
Non-Hispanic	142	11.4 (9.1–14.1)	58	15.4 (11.2–20.8)	75	16.1 (12.1–21.1)	78	19.0 (13.7–25.6)
black
Other	136	9.4 (6.7–13.1)	45	9.5 (5.5–16.1)	58	13.6 (9.0–20.2)	80	22.3 (14.3–33.0)
Total	572	100.00	259	100.00	267	100.00	254	100.00

CI indicates confidence interval; and NHANES, National Health and Nutrition Examination Survey.