Table 1. Characterisitcs of study participants.
Descriptive statistics of the baseline characteristics of eligible Atherosclerosis Risk in Communities (ARIC) participants with prevalent atrial fibrillation, stratified into high-sensitivity C-reactive protein tertiles, 1996–1998.
| Variable | Tertiles of high-sensitivity C-reactive protein (mg/L) | ||
|---|---|---|---|
|
| |||
| <2.00 (n=96) | 2.00–5.99 (n=96) | ≥6.00 (n=101) | |
| Age (years)* | 67 (5) | 67 (5) | 65 (5) |
|
| |||
| Women | 28% | 27% | 44% |
|
| |||
| Black | 4% | 5% | 13% |
|
| |||
| Education | |||
|
|
|||
| < High school | 17% | 22% | 24% |
|
|
|||
| High school -college | 42% | 45% | 48% |
|
|
|||
| Grad school | 42% | 33% | 28% |
|
| |||
| Body mass index (kg/m2)* | 27 (4) | 29 (6) | 31 (7) |
|
| |||
| Cigarette Smoker | |||
|
|
|||
| Current | 7% | 11% | 19% |
|
|
|||
| Former | 60% | 55% | 54% |
|
|
|||
| Never | 32% | 33% | 27% |
|
| |||
| Diabetes mellitus | 19% | 31% | 37% |
|
| |||
| Systolic blood pressure (mm Hg)* | 130 (20) | 133(20) | 128(20) |
|
| |||
| Diastolic blood pressure (mm Hg)* | 70 (11) | 72 (11) | 68 (12) |
|
| |||
| Prevalent coronary heart disease | 27% | 34% | 33% |
|
| |||
| Prevalent heart failure | 19% | 37% | 46% |
|
| |||
| Prevalent stroke | 6% | 7% | 10% |
|
| |||
| left ventricular hypertrophy by Electrocardiogram | 3.% | 7% | 4% |
|
| |||
| Hypertension Medication | 69% | 80% | 89% |
|
| |||
| Antiplatelet Medication | 61% | 72% | 71% |
|
| |||
| Anticoagulant Medication | 26% | 31% | 39% |
|
| |||
| Statin medication | 16% | 13% | 15% |
|
| |||
| Time to death or end of follow-up (days)* | 3296 (992) | 3083 (1093) | 2565 (1318) |
|
| |||
| CHADS2 score*, † | 1.07 (0.97) | 1.55 (1.01) | 1.78 (1.15) |
*
mean (standard deviation)
†
CHADS2: congestive heart failure, hypertension, age 75 years or older, diabetes, previous stroke/transient ischemic attack.