What is the interobserver agreement of the MRC sum-score and handgrip strength in the intensive care unit?
The MRC sum-score and handgrip strength demonstrate very good interobserver agreement in the ICU, supporting their reliability for use in clinical studies.
Interobserver agreement on MRC sum-score and handgrip strength in the ICU was very good. Agreement on "severe weakness" (MRC sum-score <36) was excellent and supports its use in interventional studies. Agreement on "significant weakness" (MRC sum-score <48) was good, but even better using the equivalent cut-off in the upper limbs. It remains to be determined whether this may serve as a substitute.
Hermans et al. (Fri,) studied this question.