Fig. 3

Distribution of mechanically ventilated patients with different nadir MRC sum scores. There were 40 patients with a nadir MRC sum score from 0 to 12 points, corresponding to muscle strength less than 1/5 grade. In addition, 12 patients with a nadir MRC sum score from 13 to 24 points, 13 with a nadir MRC sum score from 25 to 36 points, 5 with a nadir MRC sum score from 37 to 48 points, and 4 with a nadir MRC sum score from 49 to 60 points