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Case distribution in groups according to educational level.
| Educational level | Control Group (M±m%) | Study Group (M±m%) |
|---|---|---|
| Primary | 11.4±3.01 | 13.4±2.40 |
| Incomplete general | 5.71±2.26 | 19.4±2.78 • |
| General school | 60.0±4.78 | 55.2±3.51 |
| Professional school | 13.3±3.31 | 5.9±1.67 • |
| Superior studies | 9.52±2.87 | 5.9±1.67 |
Legend:
- statistical difference between control group and study group
