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What is the interobserver agreement of the MRC sum-score and handgrip strength in the intensive care unit?
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.
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Supports reliability of MRC sum-score and grip strength for ICU studies; leaves open prospective outcome validation.
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.
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Hermans et al. (2011) studied this question.
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