Percentage of patients for whom the every ‘pattern rule’ proposed was correct
| Criteria | % of cases |
| Biceps brachii equally or more severely involved than the triceps | 100 |
| Biceps brachii equally or more severely involved than brachialis | 97.05 |
| Anterior muscles of the forearm more severely involved than posterior muscles of the forearm | 95.05 |
| Patients in which subscapularis was involved despite not having symptoms of proximal upper limb muscle dysfunction as measured by the Brooke test and the manual muscle testing | 67.64 |
| The supraspinatus was equally or more severely involved than the rhomboideus | 97.01 |
| The infraspinatus was equally or more severely involved than the rhomboideus | 98.38 |
| The latissimus dorsi was equally or more severely involved than the serratus anterior | 95.55 |
| If levator scapulae and rhomboideus were affected, subscapularis, supraspinatus and infraspinatus were severely involved | 77.77 |
| Paraspinal muscles were equally or more involved than abdominal muscles | 95.4 |
| Gluteus minimus equally or more severely involved than gluteus medius | 98.86 |
| Gluteus minimus equally or more severely involved than gluteus maximus | 95.45 |
| Obturator externus equally or more severely involved than the gluteus maximus | 89.87 |
| Biceps femoris long head equally or more involved than the biceps femoris short head | 95.18 |
| Adductor magnus equally or more severely involved than the adductor longus | 80.98 |
| Rectus femoris (Score1 to 4) was not spared when the vasti muscles were involved (Score 2, 3 or 4) | 92.61 |
| Sartorius and gracilis were not completely replaced by fat | 92.22 |
| All symptomatic patients had involvement of at least one posterior muscle in the lower legs | 100 |
| Peroneus equally or more involved than the tibialis anterior | 91.57 |