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Article Abstract

Objective: To determine the utility of the Awaji criteria in diagnosing amyotrophic lateral sclerosis (ALS) and to propose a novel modification so as to enhance sensitivity based on results of individual patient data (IPD).

Methods: Individual patient data were available from 8 studies comparing the diagnostic accuracy of Awaji and revised El Escorial (rEEC) criteria. The sensitivity of a novel updated Awaji criteria, incorporating a "probable-laboratory supported" category, was also tested.

Results: Individual patient data were available from 1086 patients, consisting of 881 ALS and 205 patients with disorders mimicking ALS. Summary sensitivities based on random effects logistic regression modelling disclosed a higher sensitivity of the Awaji criteria (0.70, 95% confidence interval [CI] 0.51-0.83) and updated Awaji criteria (0.73, 95% CI 0.56-0.85) when compared to rEEC (0.58, 95% CI 0.48-0.68). Paired analysis revealed higher sensitivities of Awaji criteria in 4 studies, and of updated Awaji criteria in 7 studies, when compared to rEEC.

Conclusion: Individual patient data analysis established a higher sensitivity of Awaji criteria when compared to rEEC. The updated Awaji criteria enhanced the diagnostic sensitivity in limb-onset ALS.

Significance: The updated Awaji criteria should be considered in clinical practice and future therapeutic trials.

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http://dx.doi.org/10.1016/j.clinph.2016.04.005DOI Listing

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