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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Am J Cardiol. 2015 Jan 14;115(7):895–900. doi: 10.1016/j.amjcard.2015.01.014

Table 2.

Age-Standardized Prevalence of Low-dose Aspirin Use1 Among Adults Aged 40 and Over Eligible2 to Take Low-dose Aspirin for Secondary Prevention of Cardiovascular Disease, by Definition of Atherosclerotic Cardiovascular Disease and Demographic and Health Characteristics, United States, 20123

Coronary Heart Disease and/or Stroke n=3,068 Coronary Heart Disease Only n=2,007

% (95% CI) p-value4 % (95% CI) p-value
Total 62.2% (56.0–68.0) 67.3% (59.9–74.0)

Sex
 Men 69.1% (60.8–76.3) Reference 73.1% (62.8–81.3) Reference
 Women 55.3% (46.6–63.8) <0.05 60.5% (50.1–70.0) <0.05

Race/Ethnicity
 Non-Hispanic White 65.5% (57.0–73.2) Reference 71.6% (61.2–80.2) Reference
 Non-Hispanic Black 59.3% (47.2–70.3) NS 55.9% (38.9–71.6) NS
 Hispanic 50.6% (38.6–62.6) <0.05 53.9% (39.7–67.5) <0.05
 Other 60.2% (37.3–79.4) NS 77.6% (61.6–88.2) NS

Education
 <High school 67.6% (58.4–75.6) Reference 68.6% (55.9–79.1) Reference
 High school 56.1% (43.4–67.9) NS 67.9% (53.7–79.5) NS
 Some college 56.0% (43.6–67.8) NS 61.0% (45.5–74.6) NS
 ≥College 72.7% (59.3–83.0) NS 77.6% (63.8–87.2) NS

BMI
 Normal 64.8% (52.6–75.4) Reference 63.4% (46.9–77.2) Reference
 Overweight 65.0% (54.2–74.5) NS 68.5% (55.5–79.1) NS
 Obesity 58.9% (49.9–67.4) NS 69.2% (57.3–79.0) NS

Insurance Status
 Yes 62.6% (55.5–69.2) Reference 67.6% (59.0–75.2) Reference
 No 56.2% (42.2–69.3) NS 57.4% (41.7–71.7) NS

Ulcer
 Yes 61.9% (50.3–72.4) Reference 73.3% (55.4–85.2) Reference
 No 62.4% (55.2–69.0) NS 66.2% (57.9–73.7) NS

Arthritis5
 Yes 61.2% (51.1–70.4) Reference 67.5% (53.8–78.8) Reference
 No 62.8% (55.2–69.8) NS 66.9% (57.9–74.7) NS

Number of cardiovascular disease risk factors6
    0 37.6% (27.9–48.3) Reference 43.8% (27.5–61.7) Reference
    1 53.5% (43.0–63.8) <0.05 61.8% (47.7–74.1) NS
    2 64.3% (54.1–73.3) <0.001 68.7% (56.7–78.9) <0.05
    3 73.9% (61.7–83.2) <0.001 77.4% (65.0–86.8) <0.001
    4 91.0% (88.4–94.6) <0.001 94.0% (86.4–97.5) <0.001
1

Including following health care provider's advice to take low-dose aspirin or independently taking low-dose aspirin

2

An adult's eligibility to take low-dose aspirin is determined by either having been told by a health professional that s/he have coronary heart disease and/or stroke, or having been told by a health professional that s/he has coronary heart disease.

3

Data source: CDC/NCHS, National Health Interview Survey, 2012

4

P-values are for comparisons across the categories using reference group, NS – not significant

5

Arthritis included arthritis, rheumatoid arthritis, gout, lupus, or fibromyalgia

6

Included self-reported hypertension, high blood cholesterol, diabetes and smoking