Figure 3.

Nomogram graphical representation of the probability that an individual with stroke will experience a meaningful change in disability level. The green line plots the pretest probability estimated at 47% (based on the overall percentage of participants in this study with improved disability level) and the positive likelihood ratio (LR+) used when an individual meets or exceeds the minimal clinically important difference (MCID) of 0.16 m/s for comfortable gait speed to determine the posttest probability that the individual has a 60% probability of experiencing an improvement in disability level. The red line plots the pretest probability and the negative likelihood ratio (LR–) used when an individual does not meet the MCID of 0.16 m/s for comfortable gait speed to determine the posttest probability that the individual has only a 29% probability of experiencing an improvement in disability level. Likelihood ratio nomogram adapted and reprinted with permission from the Centre for Evidence-Based Medicine, Oxford, United Kingdom.⁶¹