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Mean worst decrement from the tested muscles in 97 myasthenia gravis cases.
| Muscle | n | Percentage (%) | Mean decrement (%) | Minimal (%) | Maximum (%) |
|---|---|---|---|---|---|
| Orbicularis Oculi | 26 | 26.8 | 18.6 | 0.0 | 66.6 |
| Abductor Digiti Minimi | 18 | 18.6 | 26.8 | 4.8 | 50.0 |
| Abductor Pollicis Brevis | 18 | 18.6 | 28.9 | 4.0 | 60.5 |
| Orbicularis Oris | 11 | 11.3 | 30.1 | 0.0 | 59.0 |
| Trapezius | 10 | 10.3 | 33.0 | 14.0 | 61.0 |
| Nasalis | 10 | 10.3 | 25.0 | 2.9 | 49.0 |
| Anconeus | 4 | 4.1 | 29.6 | 6.7 | 58.0 |
