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| Variables | Cases (n = 473) | Controls (n = 564) | P |
|---|---|---|---|
| Sex | < 0.001 | ||
| Male | 390 (82.5%) | 339 (60.1%) | |
| Female | 83 (17.5%) | 225 (39.9%) | |
| Age | 0.010 | ||
| yrs (mean ± SD) | 55.8 ± 12.2 | 53.9 ± 11.5 |
SD: Standard deviation.
P < 0.05 indicates statistical significance.
