Table 1. Basic demographic characteristics of the study subjects.
| Group | Group A | Group B |
|---|---|---|
| Number of subjects | 79 | 102 |
| Mean age (years) | 20.81 | 22.80 |
| SD | 0.94 | 0.97 |
| Range | 19–24 | 17–32 |
| Male/female ratio | 27/52 | 45/57 |
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