Table 1. Characteristics of Cases and Controls.
| Controls | Cases | P Value1 | |
| Characteristic | (n = 2147) | (n = 1987) | |
| Age, yrs | 58.3±11.3 | 58.3±11.0 | N/A2 |
| Male, n (%) | 1577 (73) | 1474 (74) | N/A2 |
| Current Smoker, n (%) | 461 (22) | 797 (40) | <0.001 |
| Residence (% rural) | 546 (25) | 517 (26) | N/A2 |
| History of diabetes, n (%) | 309 (14) | 488 (25) | <0.001 |
| History of hypertension, n (%) | 634 (30) | 771 (39) | <0.001 |
| Family history of MI, n (%) | 160 (8) | 224 (12) | <0.001 |
| Waist-to-hip ratio | 0.95±0.08 | 0.97±0.07 | <0.001 |
Data are presented as mean ± SD or number (percentages).
1
Difference between cases and controls were tested with the t test for continuous variables and Fisher's exact test for discrete variables.
2
Not applicable because case and controls were matched for this variable.