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. 2019 Feb 8;68(5):101–106. doi: 10.15585/mmwr.mm6805a2

TABLE 1. Unadjusted and adjusted prevalence of knowledge of five common heart attack signs and symptoms by demographic characteristics, history of coronary heart disease (CHD), and number of cardiovascular disease (CVD) risk factors and change from 2008 to 2017 — National Health Interview Survey, United States, 2008, 2014, and 2017.

Characteristic Unadjusted
Adjusted*
2008
2014
2017
Percentage point change 2008 to 2017 p-value (2008 versus 2017) 2008
2014
2017
Percentage point change 2008 to 2017 p-value (2008 versus 2017)
% (SE) % (SE) % (SE) % (SE) % (SE) % (SE)
Total
39.4 (0.5)
49.9 (0.5)
50.4 (0.6)
10.9
<0.001
39.6 (0.5)
50.0 (0.5)
50.2 (0.5)
10.6
<0.001
Sex §
Men
35.5 (0.7)
45.9 (0.6)
45.9 (0.7)
10.4
<0.001
35.7 (0.6)
45.9 (0.6)
45.6 (0.6)
9.8
<0.001
Women
43.1 (0.7)
53.7 (0.6)
54.5 (0.7)
11.4
<0.001
43.3 (0.7)
53.8 (0.6)
54.4 (0.6)
11.2
<0.001
Age group (yrs) §
18–44
32.5 (0.7)
41.8 (0.6)
43.5 (0.7)
11.0
<0.001
34.9 (0.7)
44.9 (0.7)
46.4 (0.7)
11.2
<0.001
45–64
46.7 (0.8)
57.3 (0.7)
55.6 (0.8)
8.9
<0.001
44.5 (0.8)
55.4 (0.7)
53.8 (0.8)
9.5
<0.001
≥65
45.3 (0.9)
56.7 (0.8)
57.4 (0.9)
12.1
<0.001
42.2 (0.9)
52.8 (0.8)
53.2 (0.9)
11.1
<0.001
Race/Ethnicity §,¶
White
45.2 (0.6)
55.8 (0.6)
56.6 (0.6)
11.4
<0.001
44.6 (0.6)
54.5 (0.6)
54.8 (0.6)
10.2
<0.001
Black
30.0 (1.1)
44.2 (1.1)
42.7 (1.4)
12.8
<0.001
31.2 (1.1)
44.9 (1.0)
43.1 (1.3)
11.6
<0.001
Asian
25.2 (2.0)
30.1 (2.0)
33.1 (2.6)
8.0
0.015
25.7 (1.9)
30.7 (2.0)
33.5 (2.5)
7.6
0.017
Hispanic
22.7 (0.9)
34.1 (1.1)
35.2 (1.3)
12.5
<0.001
27.0 (1.1)
38.9 (1.1)
38.9 (1.3)
11.1
<0.001
Other
30.9 (2.2)
43.8 (1.8)
47.0 (2.1)
16.1
<0.001
31.6 (2.2)
43.3 (1.8)
46.4 (2.1)
15.2
<0.001
Education §
Less than HS
28.3 (1.0)
39.3 (1.2)
40.5 (1.2)
12.1
<0.001
28.9 (1.0)
41.5 (1.2)
42.3 (1.2)
13.3
<0.001
HS graduate
39.5 (0.9)
49.2 (0.8)
47.9 (0.8)
8.5
<0.001
37.1 (0.8)
47.1 (0.8)
46.4 (0.8)
9.4
<0.001
Some college
44.9 (0.8)
55.8 (0.7)
54.2 (0.8)
9.3
<0.001
43.0 (0.8)
53.8 (0.7)
52.4 (0.8)
9.3
<0.001
College graduate
46.4 (1.0)
55.1 (0.7)
56.7 (0.8)
10.3
<0.001
45.5 (1.0)
54.0 (0.7)
56.0 (0.8)
10.5
<0.001
CHD**,††
With CHD
51.9 (1.4)
61.9 (1.5)
59.2 (1.4)
7.3
<0.001
47.2 (1.4)
56.9 (1.5)
53.7 (1.4)
7.6
<0.001
Without CHD
38.6 (0.6)
49.2 (0.5)
49.8 (0.6)
11.2
<0.001
39.1 (0.5)
49.5 (0.5)
49.9 (0.5)
10.8
<0.001
No. of CVD risk factors§,§§
0
35.0 (0.8)
46.4 (0.7)
45.9 (0.8)
11.0
<0.001
36.9 (0.8)
48.5 (0.7)
47.8 (0.8)
10.9
<0.001
1
38.1 (0.8)
49.2 (0.7)
49.8 (0.8)
11.7
<0.001
38.6 (0.8)
49.5 (0.7)
49.9 (0.7)
11.2
<0.001
2
45.0 (0.9)
52.8 (0.9)
55.2 (0.9)
10.1
<0.001
42.8 (0.9)
50.5 (0.9)
52.6 (0.9)
9.7
<0.001
3
46.7 (1.4)
57.2 (1.2)
57.8 (1.2)
11.1
<0.001
43.8 (1.3)
54.1 (1.2)
54.4 (1.2)
10.8
<0.001
4–5 51.0 (2.3) 57.8 (1.8) 56.0 (1.8) 5.0 0.091 47.9 (2.3) 55.0 (1.8) 52.8 (1.8) 5.0 0.124

Abbreviations: HS = high school; SE = standard error.

* Adjusted by age, sex, race/ethnicity, education, history of CHD, and CVD risk factor.

Estimates might differ from manual calculations because of rounding.

§ p<0.001 from Wald F of adjusted percentage by characteristics for 2017 data.

Persons identified as Hispanic might be of any race. Persons identified as white, black, Asian, or other race are non-Hispanic.

** p<0.05 from Wald F of adjusted percentage by characteristics for 2017 data.

†† Includes self-reported coronary heart disease, angina pectoris, or myocardial infarction.

§§ Includes self-reported hypertension, high cholesterol, diabetes, smoking, or obesity.