Table 1.
Baseline characteristics.
| MLH | LUC | |||||
|---|---|---|---|---|---|---|
| Total (n = 1189) |
Case (n = 131) |
Control (n = 1058) |
Total (n = 194) |
Case (n = 29) |
Control (n = 165) |
|
| Mean age at ECG (SD) | 70.1 (9.5) | 72.6 (8.0) | 69.8 (9.6) | 71.2 (8.7) | 69.8 (8.7) | 71.4 (8.8) |
| Mean age at PD diagnosis (SD) | 75.3 (7.7) | 75.3 (7.9) | – | 72.3 (8.0) | 71.0 (8.8) | – |
| Mean years between ECG and PD diagnosis (SD) | 2.7 (1.9) | 2.7 (1.9) | – | 1.7 (1.0) | 1.65 (1.0) | – |
| Male n (%) | 639 (53.7%) | 77 (58.8%) | 562 (53.1%) | 119 (61.3%) | 18 (62.1%) | 101 (61.2%) |
| Race n (%) | ||||||
| White | 753 (63.3%) | 86 (65.7%) | 667 (63.0%) | 149 (76.8%) | 23 (79.3) | 126 (76.4) |
| Black or African American | 412 (34.7%) | 41 (31.3%) | 371 (35.1%) | 22 (11.3%) | 3 (10.4) | 19 (11.5) |
| Multiple | 10 (0.8%) | 0 (0%) | 10 (1.0%) | 0 (0%) | 0 (0%) | 0 (0%) |
| Other/unknown | 5 (0.4%) | 2 (1.5%) | 3 (0.3%) | 19 (9.8%) | 3 (10.4) | 16 (9.7) |
| Asian | 8 (0.7%) | 2 (1.5%) | 6 (0.6%) | 4 (2.1%) | 0 (0.0%) | 4 (2.4%) |
| Amer. Ind/Alaska Native | 1 (0.1%) | 0 (0%) | 1 (0.1%) | 0 (0%) | 0 (0%) | 0 (0%) |
MLH, University of Tennessee-Methodist Le Bonheur Healthcare; LUC, Loyola University, Chicago.