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Brain relaxation grading.
| Brain relaxation grading | M group n (%) | H group n (%) | p-value |
|---|---|---|---|
| Grade I | 7 (21.2) | 10 (30.3) | 0.54 |
| Grade II | 19 (57.6) | 13 (39.4) | |
| Grade III | 4 (12.1) | 6 (18.2) | |
| Grade IV | 3 (9.1) | 4 (12.1) | |
| Good grade (I–II) | 26 (78.8) | 23 (74.2) | 0.40 |
