| DAǂ | Groups | Total | ||
| Group I | Group II | Group III | ||
| EA* | 17 (29%) | 20 (33%) | 19 (32%) | 56 (31%) |
| MA | 23 (38%) | 22 (37%) | 27 (45%) | 72 (40%) |
| LAᵠ | 20 (33%) | 18 (30%) | 14 (23%) | 52 (29%) |
| Total | 60 (100%) | 60 (100%) | 60 (100%) | 180 (100%) |
|
Chi-square | X2 | 5.204 | ||
| P-value | 0.103 | |||