Table 1.
Age distribution
| Age group (years) | Study group | Control group |
|---|---|---|
| 20–25 | 10 (50 %) | 12 (60 %) |
| 26–31 | 10 (50 %) | 7 (35 %) |
| 32–37 | 0 | 1 (5 %) |
| Total | 20 | 20 |
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