Fig. 3.

Forward continuation ratio model for shoulder strength. Lines depict marginal probabilities for each strength level. For example, when discharged from ICU, a patient aged 60 years shows greater probability of having strength equal to 3 rather than 4 or 5. Before leaving the hospital, the probability of one patient of the same age to show strength equal to 4 is higher than showing a normal muscle strength (i.e., 5).