Table 1. Subject demographics.
| Parameters | Group 1 (n=262) | Group 2 (n=237) | P |
| Age (a) | 40±7 | 38±10 | 0.16 |
| Gender | |||
| F | 33 (12.6%) | 27 (11.4%) | 0.67 |
| M | 229 (87.4%) | 210 (88.6%) |
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