Table 2.
Clinical characteristics of REGARDS study participants (N=30,086)a stratified by race-county regions.
| All | US region as defined by Murray et al | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
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| White Regions | Black Regions | |||||||||||||
|
|
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| Characteristics | North-land White | Middle America White | Low Income White | Middle America Black | Southern Low Income Rural Blacks | High Risk Urban Black | ||||||||
| Cardiovascular Risk Factors | Percent | |||||||||||||
|
| ||||||||||||||
| Smokers | 14.6 | 9.6 | 12.3 | 15.0 | 17.0 | 16.7 | 19.4 | |||||||
| Hypertensive | 59.2 | 53.7 | 50.1 | 54.9 | 70.3 | 74.4 | 70.6 | |||||||
| Taking Antihypertensive medications | 53.6 | 42.1 | 44.5 | 49.1 | 65.1 | 69.5 | 63.4 | |||||||
| Diabetes | 22.0 | 15.2 | 15.5 | 18.3 | 30.2 | 34.3 | 28.9 | |||||||
| Left Ventricular Hypertrophy | 9.9 | 7.0 | 6.5 | 6.7 | 14.5 | 14.8 | 15.2 | |||||||
| Atrial Fibrillation | 8.8 | 9.0 | 9.6 | 9.2 | 7.5 | 8.5 | 7.5 | |||||||
| Heart Disease | 17.9 | 19.7 | 19.2 | 22.5 | 15.2 | 15.4 | 16.3 | |||||||
|
| ||||||||||||||
| Cardiovascular Risk Factors | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD |
|
| ||||||||||||||
| Age | 64.8 | 9.4 | 66.1 | 10.3 | 65.5 | 9.5 | 64.4 | 8.9 | 64.4 | 9.3 | 62.6 | 9.2 | 61.8 | 9.2 |
| Total Cholesterol | 192.1 | 40.1 | 190.2 | 38.1 | 191.1 | 39.0 | 194.0 | 42.7 | 193.5 | 41.1 | 191.9 | 41.3 | 192.7 | 41.2 |
| High Density Lipoprotein | 51.8 | 16.2 | 49.9 | 15.5 | 50.9 | 16.2 | 48.6 | 15.9 | 53.7 | 16.1 | 52.6 | 15.2 | 53.8 | 16.4 |
| Systolic Blood Pressure | 127.6 | 16.7 | 125.5 | 16.9 | 125.2 | 15.8 | 126.5 | 15.6 | 130.1 | 17.0 | 130.8 | 17.5 | 132.3 | 18.2 |
| Diastolic Blood Pressure | 76.5 | 9.7 | 75.1 | 9.1 | 75.1 | 9.2 | 75.6 | 9.1 | 78.4 | 9.9 | 78.6 | 10.0 | 78.5 | 10.4 |
| Framingham Stroke Score | 10.0 | 10.6 | 10.1 | 10.9 | 9.4 | 10.0 | 9.3 | 9.9 | 10.8 | 11.2 | 10.4 | 11.3 | 11.4 | 11.7 |
| Framingham CHD Score | 9.8 | 9.5 | 9.7 | 9.4 | 9.4 | 9.0 | 10.0 | 9.8 | 10.3 | 10.0 | 9.8 | 9.8 | 10.8 | 9.3 |
SD: standard deviation
a
Of the 30,239 participants, 56 were excluded due to data anomalies, and 97 excluded due to geocoding issues, resulting in the analysis cohort of 30,086 participants.