Table 1. Summary of characteristics of study subjects.
| Cases (n = 842) | Controls (n = 1,718) | |
|---|---|---|
| Age (years), mean ± S.D. | 60.67 ± 12.99 | 62.77 ± 9.81 |
| Gender, n (%) | ||
| Male | 539 (66.9) | 1,216 (70.8) |
| Female | 303 (33.1) | 502 (29.2) |
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