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Comparison of distribution advantages between the two groups.
| Group | n | Left advantage type | Right advantage type | Equilibrium type |
|---|---|---|---|---|
| Young group | 84 | 30 (35.71) | 49 (58.33) | 5 (5.95) |
| Elderly group | 66 | 21 (31.82) | 42 (63.64) | 3 (4.55) |
| t | — | 0.250 | 0.436 | 0.145 |
| P | — | 0.617 | 0.509 | 0.703 |
